This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Which is not a prodrug: 
Select and explain. 
A. Quinapril, B. Fosinopril, C. Benzopril, D. Lisinopril
D: Lisinopril
Answer: D: Lisinopril 
Explanation: Remember all ACE inhibitors other than Captopril and lisinopril are prodrugs.