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 one of the following drugs does not have active metabolite ? 
Select and explain. 
A. Diazepam, B. Propranolol, C. Allopurinol, D. Lisinopril
D: Lisinopril
Answer: D: Lisinopril 
Explanation: - Among the given options, only Lisinopril does not have an active metabolite. Except for Captopril and Lisinopril, all Angiotensin Converting Enzyme (ACE) inhibitors are prodrugs.
- Diazepam produces Oxazepam and many other active metabolites.
- Propranolol can give rise to 4-hydroxyPropranolol which has β antagonist activity
- Oxypurinol is produced from Allopurinol.