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': 'MALE', 'year of birth': 1984}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-06-10', 'end datetime': '2010-06-10'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2011-05-23', 'end datetime': '2011-05-23'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-12-04', 'end datetime': '2013-12-04'}
Visit 4: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-08-29', 'end datetime': '2016-08-29'}
Measurement 1: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-23T00:00:00', 'unit': 'cm', 'value': 175.37}
Measurement 2: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-23T00:00:00', 'unit': 'kg', 'value': 80.89}
Measurement 3: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-23T00:00:00', 'unit': 'kg/m2', 'value': 26.3}
Measurement 4: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-23T00:00:00', 'unit': 'mmHg', 'value': 117.0}
Measurement 5: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-23T00:00:00', 'unit': 'mmHg', 'value': 79.0}
Measurement 6: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2013-12-04T00:00:00', 'unit': 'cm', 'value': 175.37}
Measurement 7: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2013-12-04T00:00:00', 'unit': 'kg', 'value': 83.75}
Measurement 8: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2013-12-04T00:00:00', 'unit': 'kg/m2', 'value': 27.23}
Measurement 9: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-12-04T00:00:00', 'unit': 'mmHg', 'value': 131.0}
Measurement 10: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-12-04T00:00:00', 'unit': 'mmHg', 'value': 74.0}
Measurement 11: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-29T00:00:00', 'unit': 'cm', 'value': 175.37}
Measurement 12: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-29T00:00:00', 'unit': 'kg', 'value': 88.21}
Measurement 13: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-29T00:00:00', 'unit': 'kg/m2', 'value': 28.68}
Measurement 14: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-29T00:00:00', 'unit': 'mmHg', 'value': 103.0}
Measurement 15: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-29T00:00:00', 'unit': 'mmHg', 'value': 77.0}
Measurement 16: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-29T00:00:00', 'unit': 'mg/dL', 'value': 174.0}
Measurement 17: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-29T00:00:00', 'unit': 'mg/dL', 'value': 126.0}
Measurement 18: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-29T00:00:00', 'unit': 'mg/dL', 'value': 81.0}
Measurement 19: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-29T00:00:00', 'unit': 'mg/dL', 'value': 67.0}
Procedure 1: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2011-05-23', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 2: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2013-12-04', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 3: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2016-08-29', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Current Medications:
Medication 1: {'Drug name': 'Penicillin V Potassium 250 MG', 'Start datetime': '1988-06-21', 'End datetime': '1988-06-21', '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. diphenhydrAMINE Hydrochloride 25 MG Oral Tablet
B. Tacrine 10 MG Oral Capsule
C.  Amoxicillin 250 MG / Clavulanate 125 MG [Augmentin]
D. 24 HR Metformin hydrochloride 500 MG Extended Release Oral Tablet
E. canagliflozin 100 MG Oral Tablet

Please share a single capital letter representing your selected answer: 
diphenhydrAMINE Hydrochloride 25 MG Oral Tablet Tacrine 10 MG Oral Capsule  Amoxicillin 250 MG / Clavulanate 125 MG [Augmentin] 24 HR Metformin hydrochloride 500 MG Extended Release Oral Tablet canagliflozin 100 MG Oral Tablet