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': 1909}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '1937-02-16', 'end datetime': '1937-02-16'}
Measurement 1: {'measurement': 'Myocardial Infarction', 'measurement type': 'EHR encounter record', 'measurement date': '1937-02-16T00:00:00', 'unit': None, 'value': None}
Current Medications:
Medication 1: {'Drug name': 'Penicillin V Potassium 250 MG', 'Start datetime': '1915-09-26', 'End datetime': '1915-09-26', '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. insulin human  isophane 70 UNT/ML / Regular Insulin  Human 30 UNT/ML Injectable Suspension [Humulin]
C. Nitroglycerin 0.4 MG/ACTUAT [Nitrolingual]
D. canagliflozin 100 MG Oral Tablet
E. Camila 28 Day Pack

Please share a single capital letter representing your selected answer: 
Memantine hydrochloride 2 MG/ML [Namenda] insulin human  isophane 70 UNT/ML / Regular Insulin  Human 30 UNT/ML Injectable Suspension [Humulin] Nitroglycerin 0.4 MG/ACTUAT [Nitrolingual] canagliflozin 100 MG Oral Tablet Camila 28 Day Pack