You are an assistant tasked with analyzing medical histories to determine which medication is missing from the patient’s current regimen.

<PatientData>
Demographics: {'race': None, 'gender': 'FEMALE', 'year of birth': 1966}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-08-17', 'end datetime': '2010-08-17'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2012-10-12', 'end datetime': '2012-10-12'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-08-14', 'end datetime': '2014-08-14'}
Visit 4: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-03-04', 'end datetime': '2016-03-04'}
Visit 5: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-11-07', 'end datetime': '2016-11-07'}
Measurement 1: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': '%', 'value': 7.6}
Measurement 2: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'cm', 'value': 166.61}
Measurement 3: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'kg', 'value': 84.18}
Measurement 4: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'kg/m2', 'value': 30.33}
Measurement 5: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mmHg', 'value': 160.0}
Measurement 6: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mmHg', 'value': 93.0}
Measurement 7: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': '%', 'value': 7.6}
Measurement 8: {'measurement': 'Glucose', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mg/dL', 'value': 112.0}
Measurement 9: {'measurement': 'Urea Nitrogen', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mg/dL', 'value': 9.0}
Measurement 10: {'measurement': 'Creatinine', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mg/dL', 'value': 1.0}
Measurement 11: {'measurement': 'Calcium', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mg/dL', 'value': 8.96}
Measurement 12: {'measurement': 'Sodium', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mmol/L', 'value': 136.0}
Measurement 13: {'measurement': 'Potassium', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mmol/L', 'value': 4.1}
Measurement 14: {'measurement': 'Chloride', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mmol/L', 'value': 110.0}
Measurement 15: {'measurement': 'Carbon Dioxide', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mmol/L', 'value': 20.0}
Measurement 16: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mg/dL', 'value': 227.0}
Measurement 17: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mg/dL', 'value': 170.0}
Measurement 18: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mg/dL', 'value': 153.0}
Measurement 19: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mg/dL', 'value': 40.0}
Measurement 20: {'measurement': 'Microalbumin Creatine Ratio', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mg/g', 'value': 13.0}
Measurement 21: {'measurement': 'Estimated Glomerular Filtration Rate', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-17T00:00:00', 'unit': 'mL/min/{1.73_m2}', 'value': 60.0}
Measurement 22: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': '%', 'value': 6.3}
Measurement 23: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'cm', 'value': 166.61}
Measurement 24: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'kg', 'value': 87.12}
Measurement 25: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'kg/m2', 'value': 31.38}
Measurement 26: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mmHg', 'value': 163.0}
Measurement 27: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mmHg', 'value': 107.0}
Measurement 28: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': '%', 'value': 6.3}
Measurement 29: {'measurement': 'Glucose', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mg/dL', 'value': 161.0}
Measurement 30: {'measurement': 'Urea Nitrogen', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mg/dL', 'value': 11.0}
Measurement 31: {'measurement': 'Creatinine', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mg/dL', 'value': 1.0}
Measurement 32: {'measurement': 'Calcium', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mg/dL', 'value': 8.95}
Measurement 33: {'measurement': 'Sodium', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mmol/L', 'value': 137.0}
Measurement 34: {'measurement': 'Potassium', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mmol/L', 'value': 4.81}
Measurement 35: {'measurement': 'Chloride', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mmol/L', 'value': 102.0}
Measurement 36: {'measurement': 'Carbon Dioxide', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mmol/L', 'value': 29.0}
Measurement 37: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mg/dL', 'value': 258.0}
Measurement 38: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mg/dL', 'value': 431.0}
Measurement 39: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mg/dL', 'value': 134.0}
Measurement 40: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mg/dL', 'value': 37.0}
Measurement 41: {'measurement': 'Microalbumin Creatine Ratio', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mg/g', 'value': 1.0}
Measurement 42: {'measurement': 'Estimated Glomerular Filtration Rate', 'measurement type': 'EHR encounter record', 'measurement date': '2012-10-12T00:00:00', 'unit': 'mL/min/{1.73_m2}', 'value': 60.0}
Measurement 43: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': '%', 'value': 6.6}
Measurement 44: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'cm', 'value': 166.61}
Measurement 45: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'kg', 'value': 90.02}
Measurement 46: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'kg/m2', 'value': 32.43}
Measurement 47: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mmHg', 'value': 142.0}
Measurement 48: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mmHg', 'value': 112.0}
Measurement 49: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': '%', 'value': 6.6}
Measurement 50: {'measurement': 'Glucose', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mg/dL', 'value': 99.0}
Measurement 51: {'measurement': 'Urea Nitrogen', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mg/dL', 'value': 12.0}
Measurement 52: {'measurement': 'Creatinine', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mg/dL', 'value': 1.0}
Measurement 53: {'measurement': 'Calcium', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mg/dL', 'value': 9.29}
Measurement 54: {'measurement': 'Sodium', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mmol/L', 'value': 144.0}
Measurement 55: {'measurement': 'Potassium', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mmol/L', 'value': 4.29}
Measurement 56: {'measurement': 'Chloride', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mmol/L', 'value': 103.0}
Measurement 57: {'measurement': 'Carbon Dioxide', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mmol/L', 'value': 20.0}
Measurement 58: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mg/dL', 'value': 178.0}
Measurement 59: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mg/dL', 'value': 140.0}
Measurement 60: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mg/dL', 'value': 85.0}
Measurement 61: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mg/dL', 'value': 65.0}
Measurement 62: {'measurement': 'Microalbumin Creatine Ratio', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mg/g', 'value': 7.0}
Measurement 63: {'measurement': 'Estimated Glomerular Filtration Rate', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-14T00:00:00', 'unit': 'mL/min/{1.73_m2}', 'value': 60.0}
Measurement 64: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': '%', 'value': 6.8}
Measurement 65: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'cm', 'value': 166.61}
Measurement 66: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'kg', 'value': 91.68}
Measurement 67: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'kg/m2', 'value': 33.03}
Measurement 68: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mmHg', 'value': 154.0}
Measurement 69: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mmHg', 'value': 106.0}
Measurement 70: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': '%', 'value': 6.8}
Measurement 71: {'measurement': 'Glucose', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mg/dL', 'value': 106.0}
Measurement 72: {'measurement': 'Urea Nitrogen', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mg/dL', 'value': 15.0}
Measurement 73: {'measurement': 'Creatinine', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mg/dL', 'value': 1.0}
Measurement 74: {'measurement': 'Calcium', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mg/dL', 'value': 9.74}
Measurement 75: {'measurement': 'Sodium', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mmol/L', 'value': 140.0}
Measurement 76: {'measurement': 'Potassium', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mmol/L', 'value': 4.65}
Measurement 77: {'measurement': 'Chloride', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mmol/L', 'value': 101.0}
Measurement 78: {'measurement': 'Carbon Dioxide', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mmol/L', 'value': 29.0}
Measurement 79: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mg/dL', 'value': 209.0}
Measurement 80: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mg/dL', 'value': 167.0}
Measurement 81: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mg/dL', 'value': 128.0}
Measurement 82: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mg/dL', 'value': 47.0}
Measurement 83: {'measurement': 'Microalbumin Creatine Ratio', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mg/g', 'value': 16.0}
Measurement 84: {'measurement': 'Estimated Glomerular Filtration Rate', 'measurement type': 'EHR encounter record', 'measurement date': '2016-11-07T00:00:00', 'unit': 'mL/min/{1.73_m2}', 'value': 60.0}
Procedure 1: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2010-08-17', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 2: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2014-08-14', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 3: {'procedure': 'Colonoscopy', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2016-03-04', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 4: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2016-11-07', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Current Medications:
Medication 1: {'Drug name': 'Penicillin V Potassium 250 MG', 'Start datetime': '1977-08-12', 'End datetime': '1977-08-12', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 2: {'Drug name': 'Penicillin V Potassium 500 MG', 'Start datetime': '2005-02-16', 'End datetime': '2005-02-16', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
</PatientData>

Based on the EHR history above, which medication **should also be on the list today**?

A. NuvaRing 0.12/0.015 MG per 24HR 21 Day Vaginal Ring
B. Meperidine Hydrochloride 50 MG Oral Tablet
C. canagliflozin 100 MG Oral Tablet
D. Yaz 28 Day Pack
E. 24 HR Metformin hydrochloride 500 MG Extended Release Oral Tablet

Please share a single capital letter representing your selected answer: 
NuvaRing 0.12/0.015 MG per 24HR 21 Day Vaginal Ring Meperidine Hydrochloride 50 MG Oral Tablet canagliflozin 100 MG Oral Tablet Yaz 28 Day Pack 24 HR Metformin hydrochloride 500 MG Extended Release Oral Tablet