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

<PatientData>
Demographics: {'race': 'White', 'gender': 'FEMALE', 'year of birth': 1966}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2012-01-28', 'end datetime': '2012-01-28'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2012-05-25', 'end datetime': '2012-05-25'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-05-23', 'end datetime': '2014-05-23'}
Visit 4: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-09-29', 'end datetime': '2014-09-29'}
Visit 5: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-01-22', 'end datetime': '2016-01-22'}
Visit 6: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-01-29', 'end datetime': '2016-01-29'}
Visit 7: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-10-23', 'end datetime': '2016-10-23'}
Visit 8: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2017-01-05', 'end datetime': '2017-01-05'}
Measurement 1: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2012-05-25T00:00:00', 'unit': 'cm', 'value': 168.92}
Measurement 2: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2012-05-25T00:00:00', 'unit': 'kg', 'value': 100.77}
Measurement 3: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2012-05-25T00:00:00', 'unit': 'kg/m2', 'value': 35.31}
Measurement 4: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2012-05-25T00:00:00', 'unit': 'mmHg', 'value': 182.0}
Measurement 5: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2012-05-25T00:00:00', 'unit': 'mmHg', 'value': 95.0}
Measurement 6: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2012-05-25T00:00:00', 'unit': 'mg/dL', 'value': 193.0}
Measurement 7: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2012-05-25T00:00:00', 'unit': 'mg/dL', 'value': 149.0}
Measurement 8: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2012-05-25T00:00:00', 'unit': 'mg/dL', 'value': 103.0}
Measurement 9: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2012-05-25T00:00:00', 'unit': 'mg/dL', 'value': 60.0}
Measurement 10: {'measurement': 'Estimated Glomerular Filtration Rate', 'measurement type': 'EHR encounter record', 'measurement date': '2012-05-25T00:00:00', 'unit': 'mL/min/{1.73_m2}', 'value': 60.0}
Measurement 11: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2014-09-29T00:00:00', 'unit': 'cm', 'value': 168.92}
Measurement 12: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2014-09-29T00:00:00', 'unit': 'kg', 'value': 104.12}
Measurement 13: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2014-09-29T00:00:00', 'unit': 'kg/m2', 'value': 36.49}
Measurement 14: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-09-29T00:00:00', 'unit': 'mmHg', 'value': 187.0}
Measurement 15: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-09-29T00:00:00', 'unit': 'mmHg', 'value': 104.0}
Measurement 16: {'measurement': 'Estimated Glomerular Filtration Rate', 'measurement type': 'EHR encounter record', 'measurement date': '2014-09-29T00:00:00', 'unit': 'mL/min/{1.73_m2}', 'value': 60.0}
Measurement 17: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-23T00:00:00', 'unit': 'cm', 'value': 168.92}
Measurement 18: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-23T00:00:00', 'unit': 'kg', 'value': 105.99}
Measurement 19: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-23T00:00:00', 'unit': 'kg/m2', 'value': 37.14}
Measurement 20: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-23T00:00:00', 'unit': 'mmHg', 'value': 176.0}
Measurement 21: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-23T00:00:00', 'unit': 'mmHg', 'value': 119.0}
Measurement 22: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-23T00:00:00', 'unit': 'mg/dL', 'value': 184.0}
Measurement 23: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-23T00:00:00', 'unit': 'mg/dL', 'value': 116.0}
Measurement 24: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-23T00:00:00', 'unit': 'mg/dL', 'value': 89.0}
Measurement 25: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-23T00:00:00', 'unit': 'mg/dL', 'value': 71.0}
Measurement 26: {'measurement': 'Estimated Glomerular Filtration Rate', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-23T00:00:00', 'unit': 'mL/min/{1.73_m2}', 'value': 60.0}
Measurement 27: {'measurement': 'Oral temperature', 'measurement type': 'EHR encounter record', 'measurement date': '2017-01-05T00:00:00', 'unit': 'Cel', 'value': 38.0}
Procedure 1: {'procedure': 'Replacement of contraceptive intrauterine device', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2014-05-23', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 2: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2014-09-29', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 3: {'procedure': 'Colonoscopy', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2016-01-22', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 4: {'procedure': 'Removal of intrauterine device', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2016-01-29', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 5: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2016-10-23', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Current Medications:
Medication 1: {'Drug name': 'Estrostep Fe 28 Day Pack', 'Start datetime': '2001-01-26', 'End datetime': '2016-01-22', '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. Naproxen sodium 550 MG [Anaprox]
B. Penicillin V Potassium 500 MG
C. Memantine hydrochloride 2 MG/ML [Namenda]
D. Acetaminophen 160 MG
E. Ortho Tri-Cyclen 28 Day Pack

Please share a single capital letter representing your selected answer: 
Naproxen sodium 550 MG [Anaprox] Penicillin V Potassium 500 MG Memantine hydrochloride 2 MG/ML [Namenda] Acetaminophen 160 MG Ortho Tri-Cyclen 28 Day Pack