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 of the following substances is most potent androgen ? 
Select and explain. 
A. Dehydroepiandrostenidione, B. Dihydrotestosterone, C. Androstenidione, D. Testosterone
B: Dihydrotestosterone
Answer: B: Dihydrotestosterone 
Explanation: None