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': 1906}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '1963-02-21', 'end datetime': '1963-02-21'}
Measurement 1: {'measurement': 'Non-small cell lung cancer (disorder)', 'measurement type': 'EHR encounter record', 'measurement date': '1963-02-21T00:00:00', 'unit': None, 'value': None}
</PatientData>

Based on the EHR history above, which medication **should also be on the list today**?

A. Naproxen sodium 550 MG [Anaprox]
B. Levora 0.15/30 28 Day Pack
C. Natazia 28 Day Pack
D. Nitroglycerin 0.4 MG/ACTUAT [Nitrolingual]
E. Allopurinol 100 MG [Zyloprim]

Please share a single capital letter representing your selected answer: 
Naproxen sodium 550 MG [Anaprox] Levora 0.15/30 28 Day Pack Natazia 28 Day Pack Nitroglycerin 0.4 MG/ACTUAT [Nitrolingual] Allopurinol 100 MG [Zyloprim]