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
Finasteride has efficacy in the prevention of male pattern baldness by virtue of its ability to: 
Select and explain. 
A. Competitively antagonize androgen receptors, B. Decrease the release of gonadotropins, C. Inhibit the synthesis of testosterone, D. Reduce the production of DHT
D: Reduce the production of DHT
Answer: D: Reduce the production of DHT 
Explanation: None