You are an assistant tasked with analyzing medical histories to provide a second opinion on possible future diagnoses.

<PatientData>
Demographics: {'race': 'White', 'gender': 'MALE', 'year of birth': 1958}
Medication 1: {'Drug name': 'Penicillin V Potassium 500 MG', 'Start datetime': '1998-10-29', 'End datetime': '1998-10-29', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
</PatientData>
Based on the trajectory above, which diagnosis is the patient **most likely** to receive by 2009-07-31?
A. Impacted molars
B. Appendicitis
C. History of cardiac arrest (situation)
D. Prediabetes
E. Macular edema and retinopathy due to type 2 diabetes mellitus (disorder)
Please share a single capital letter representing your selected answer: 
Impacted molars Appendicitis History of cardiac arrest (situation) Prediabetes Macular edema and retinopathy due to type 2 diabetes mellitus (disorder)