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
All are anti–androgens except: 
Select and explain. 
A. Finasteride, B. Flutamide, C. Cyproterone acetate, D. Dihydrotestosterone
D: Dihydrotestosterone
Answer: D: Dihydrotestosterone 
Explanation: None