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': 2007}
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': '2012-01-11', 'end datetime': '2012-01-11'}
Visit 3: {'visit': 'Emergency Room Visit', 'visit type': 'EHR encounter record', 'start datetime': '2012-02-10', 'end datetime': '2012-02-10'}
Visit 4: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2012-05-20', 'end datetime': '2012-05-20'}
Visit 5: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2012-07-19', 'end datetime': '2012-07-19'}
Visit 6: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-06-10', 'end datetime': '2013-06-10'}
Visit 7: {'visit': 'Emergency Room Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-07-01', 'end datetime': '2013-07-01'}
Visit 8: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-07-14', 'end datetime': '2013-07-14'}
Visit 9: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-08-07', 'end datetime': '2013-08-07'}
Visit 10: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-08-31', 'end datetime': '2014-08-31'}
Visit 11: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2015-10-17', 'end datetime': '2015-10-17'}
Visit 12: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-10-15', 'end datetime': '2016-10-15'}
Measurement 1: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-17T00:00:00', 'unit': 'cm', 'value': 103.08}
Measurement 2: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-17T00:00:00', 'unit': 'kg', 'value': 17.2}
Measurement 3: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-17T00:00:00', 'unit': 'kg/m2', 'value': 16.19}
Measurement 4: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-17T00:00:00', 'unit': 'mmHg', 'value': 127.0}
Measurement 5: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-05-17T00:00:00', 'unit': 'mmHg', 'value': 75.0}
Measurement 6: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2012-07-19T00:00:00', 'unit': 'cm', 'value': 110.72}
Measurement 7: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2012-07-19T00:00:00', 'unit': 'kg', 'value': 19.93}
Measurement 8: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2012-07-19T00:00:00', 'unit': 'kg/m2', 'value': 16.25}
Measurement 9: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2012-07-19T00:00:00', 'unit': 'mmHg', 'value': 127.0}
Measurement 10: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2012-07-19T00:00:00', 'unit': 'mmHg', 'value': 77.0}
Measurement 11: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2013-07-14T00:00:00', 'unit': 'cm', 'value': 117.13}
Measurement 12: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2013-07-14T00:00:00', 'unit': 'kg', 'value': 22.38}
Measurement 13: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2013-07-14T00:00:00', 'unit': 'kg/m2', 'value': 16.32}
Measurement 14: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-07-14T00:00:00', 'unit': 'mmHg', 'value': 122.0}
Measurement 15: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-07-14T00:00:00', 'unit': 'mmHg', 'value': 89.0}
Measurement 16: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-31T00:00:00', 'unit': 'cm', 'value': 123.89}
Measurement 17: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-31T00:00:00', 'unit': 'kg', 'value': 25.2}
Measurement 18: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-31T00:00:00', 'unit': 'kg/m2', 'value': 16.42}
Measurement 19: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-31T00:00:00', 'unit': 'mmHg', 'value': 118.0}
Measurement 20: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-31T00:00:00', 'unit': 'mmHg', 'value': 85.0}
Measurement 21: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2015-10-17T00:00:00', 'unit': 'cm', 'value': 130.68}
Measurement 22: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2015-10-17T00:00:00', 'unit': 'kg', 'value': 28.62}
Measurement 23: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2015-10-17T00:00:00', 'unit': 'kg/m2', 'value': 16.76}
Measurement 24: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2015-10-17T00:00:00', 'unit': 'mmHg', 'value': 137.0}
Measurement 25: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2015-10-17T00:00:00', 'unit': 'mmHg', 'value': 84.0}
Measurement 26: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-15T00:00:00', 'unit': 'cm', 'value': 135.92}
Measurement 27: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-15T00:00:00', 'unit': 'kg', 'value': 32.05}
Measurement 28: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-15T00:00:00', 'unit': 'kg/m2', 'value': 17.35}
Measurement 29: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-15T00:00:00', 'unit': 'mmHg', 'value': 132.0}
Measurement 30: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-10-15T00:00:00', 'unit': 'mmHg', 'value': 75.0}
Procedure 1: {'procedure': 'Sputum examination (procedure)', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2012-01-11', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 2: {'procedure': 'Bone immobilization', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2012-02-10', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 3: {'procedure': 'Bone immobilization', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2013-07-01', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Current Medications:
Medication 1: {'Drug name': 'Ibuprofen 100 MG Oral Tablet', 'Start datetime': '2012-02-10', 'End datetime': '2012-05-20', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 2: {'Drug name': 'Acetaminophen 160 MG Oral Tablet', 'Start datetime': '2013-07-01', 'End datetime': '2013-08-07', '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. Memantine hydrochloride 2 MG/ML [Namenda]
B. Amoxicillin 500 MG Oral Tablet
C. Penicillin V Potassium 250 MG
D. Alendronic acid 10 MG [Fosamax]
E. Acetaminophen 160 MG

Please share a single capital letter representing your selected answer: 
Memantine hydrochloride 2 MG/ML [Namenda] Amoxicillin 500 MG Oral Tablet Penicillin V Potassium 250 MG Alendronic acid 10 MG [Fosamax] Acetaminophen 160 MG