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': 1990}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-11-03', 'end datetime': '2010-11-03'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2011-06-14', 'end datetime': '2011-06-14'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-05-21', 'end datetime': '2014-05-21'}
Visit 4: {'visit': 'Emergency Room Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-07-10', 'end datetime': '2016-07-10'}
Visit 5: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-08-21', 'end datetime': '2016-08-21'}
Measurement 1: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2010-11-03T00:00:00', 'unit': 'cm', 'value': 163.21}
Measurement 2: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2010-11-03T00:00:00', 'unit': 'kg', 'value': 48.24}
Measurement 3: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2010-11-03T00:00:00', 'unit': 'kg/m2', 'value': 18.11}
Measurement 4: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-11-03T00:00:00', 'unit': 'mmHg', 'value': 125.0}
Measurement 5: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-11-03T00:00:00', 'unit': 'mmHg', 'value': 85.0}
Measurement 6: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'cm', 'value': 163.21}
Measurement 7: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'kg', 'value': 52.16}
Measurement 8: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'kg/m2', 'value': 19.58}
Measurement 9: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'mmHg', 'value': 109.0}
Measurement 10: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'mmHg', 'value': 72.0}
Procedure 1: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2010-11-03', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 2: {'procedure': 'Sputum examination (procedure)', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2011-06-14', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Current Medications:
Medication 1: {'Drug name': 'Astemizole 10 MG Oral Tablet', 'Start datetime': '1991-03-17', 'End datetime': '1991-03-17', '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': '1991-03-17', 'End datetime': '1991-03-17', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 3: {'Drug name': 'Penicillin V Potassium 250 MG', 'Start datetime': '1991-08-27', 'End datetime': '1991-08-27', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 4: {'Drug name': 'Dextromethorphan Hydrobromide 1 MG/ML', 'Start datetime': '2011-06-14', 'End datetime': '2011-06-23', '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. Clopidogrel 75 MG Oral Tablet
B. Kyleena 19.5 MG Intrauterine System
C. Cefuroxime 250 MG Oral Tablet
D. Ortho Tri-Cyclen 28 Day Pack
E. Donepezil hydrochloride 23 MG [Aricept]

Please share a single capital letter representing your selected answer: 
Clopidogrel 75 MG Oral Tablet Kyleena 19.5 MG Intrauterine System Cefuroxime 250 MG Oral Tablet Ortho Tri-Cyclen 28 Day Pack Donepezil hydrochloride 23 MG [Aricept]