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': 1942}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '1996-10-08', 'end datetime': '1996-10-08'}
Measurement 1: {'measurement': 'Pulmonary emphysema (disorder)', 'measurement type': 'EHR encounter record', 'measurement date': '1996-10-08T00:00:00', 'unit': None, 'value': None}
Current Medications:
Medication 1: {'Drug name': '24 HR Metformin hydrochloride 500 MG Extended Release Oral Tablet', 'Start datetime': '1985-12-30', 'End datetime': '1985-12-30', '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. Estrostep Fe 28 Day Pack
B. Implanon 68 MG Drug Implant
C. Alteplase 1 MG/ML Injectable Solution
D. 200 ACTUAT Albuterol 0.09 MG/ACTUAT Metered Dose Inhaler
E. Fluticasone propionate 0.25 MG/ACTUAT / salmeterol 0.05 MG/ACTUAT [Advair]

Please share a single capital letter representing your selected answer: 
Estrostep Fe 28 Day Pack Implanon 68 MG Drug Implant Alteplase 1 MG/ML Injectable Solution 200 ACTUAT Albuterol 0.09 MG/ACTUAT Metered Dose Inhaler Fluticasone propionate 0.25 MG/ACTUAT / salmeterol 0.05 MG/ACTUAT [Advair]