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': 'MALE', 'year of birth': 1984}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2011-05-17', 'end datetime': '2011-05-17'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-07-18', 'end datetime': '2014-07-18'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2017-01-04', 'end datetime': '2017-01-04'}
Measurement 1: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-17T00:00:00', 'unit': 'cm', 'value': 186.16}
Measurement 2: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-17T00:00:00', 'unit': 'kg', 'value': 78.31}
Measurement 3: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-17T00:00:00', 'unit': 'kg/m2', 'value': 22.6}
Measurement 4: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-17T00:00:00', 'unit': 'mmHg', 'value': 109.0}
Measurement 5: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-17T00:00:00', 'unit': 'mmHg', 'value': 71.0}
Measurement 6: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2014-07-18T00:00:00', 'unit': 'cm', 'value': 186.16}
Measurement 7: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2014-07-18T00:00:00', 'unit': 'kg', 'value': 83.1}
Measurement 8: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2014-07-18T00:00:00', 'unit': 'kg/m2', 'value': 23.98}
Measurement 9: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-07-18T00:00:00', 'unit': 'mmHg', 'value': 113.0}
Measurement 10: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-07-18T00:00:00', 'unit': 'mmHg', 'value': 72.0}
Measurement 11: {'measurement': 'Oral temperature', 'measurement type': 'EHR encounter record', 'measurement date': '2017-01-04T00:00:00', 'unit': 'Cel', 'value': 38.0}
Procedure 1: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2011-05-17', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 2: {'procedure': 'Throat culture (procedure) ', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2017-01-04', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
</PatientData>

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

A. Terfenadine 60 MG Oral Tablet
B. Penicillin V Potassium 250 MG
C. Chlorpheniramine 8 MG Oral Tablet
D. oxaliplatin 5 MG/ML [Eloxatin]
E. Memantine hydrochloride 2 MG/ML [Namenda]

Please share a single capital letter representing your selected answer: 
Terfenadine 60 MG Oral Tablet Penicillin V Potassium 250 MG Chlorpheniramine 8 MG Oral Tablet oxaliplatin 5 MG/ML [Eloxatin] Memantine hydrochloride 2 MG/ML [Namenda]