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': 1989}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-03-01', 'end datetime': '2013-03-01'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-10-12', 'end datetime': '2013-10-12'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-11-16', 'end datetime': '2013-11-16'}
Visit 4: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-07-18', 'end datetime': '2014-07-18'}
Visit 5: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-05-11', 'end datetime': '2016-05-11'}
Measurement 1: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2013-03-01T00:00:00', 'unit': 'cm', 'value': 185.0}
Measurement 2: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2013-03-01T00:00:00', 'unit': 'kg', 'value': 68.67}
Measurement 3: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2013-03-01T00:00:00', 'unit': 'kg/m2', 'value': 20.06}
Measurement 4: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-03-01T00:00:00', 'unit': 'mmHg', 'value': 124.0}
Measurement 5: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-03-01T00:00:00', 'unit': 'mmHg', 'value': 73.0}
Measurement 6: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2016-05-11T00:00:00', 'unit': 'cm', 'value': 185.0}
Measurement 7: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2016-05-11T00:00:00', 'unit': 'kg', 'value': 74.98}
Measurement 8: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2016-05-11T00:00:00', 'unit': 'kg/m2', 'value': 21.91}
Measurement 9: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-05-11T00:00:00', 'unit': 'mmHg', 'value': 130.0}
Measurement 10: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-05-11T00:00:00', 'unit': 'mmHg', 'value': 84.0}
Procedure 1: {'procedure': 'Measurement of respiratory function (procedure)', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2013-10-12', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Current Medications:
Medication 1: {'Drug name': 'Chlorpheniramine 2 MG Chewable Tablet', 'Start datetime': '1990-05-05', 'End datetime': '1990-05-05', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 2: {'Drug name': '0.3 ML EPINEPHrine 0.5 MG/ML Auto-Injector', 'Start datetime': '1990-05-05', 'End datetime': '1990-05-05', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 3: {'Drug name': 'Acetaminophen 160 MG', 'Start datetime': '2013-10-12', 'End datetime': '2013-10-19', '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. Mestranol / Norethynodrel [Enovid]
B. Fluticasone propionate 0.25 MG/ACTUAT / salmeterol 0.05 MG/ACTUAT [Advair]
C. Leucovorin 100 MG Injection
D. Estrostep Fe 28 Day Pack
E. Penicillin V Potassium 250 MG

Please share a single capital letter representing your selected answer: 
Mestranol / Norethynodrel [Enovid] Fluticasone propionate 0.25 MG/ACTUAT / salmeterol 0.05 MG/ACTUAT [Advair] Leucovorin 100 MG Injection Estrostep Fe 28 Day Pack Penicillin V Potassium 250 MG