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 substances is the most potent androgen - 
Select and explain. 
A. Dihydroepiandrostendione, B. Dihydrotestosterone, C. Androstendione, D. Testosterone
B: Dihydrotestosterone
Answer: B: Dihydrotestosterone 
Explanation: Ans. is 'b' i.e., Dihydrotestosterone "Dihydrotestosterone is more active than testosterone - It binds more avidly with the cytoplasmic receptors, and this complex is more active than testosterone receptor complex in combining with DNA." o Dehydroepiandrosterone and androstenedione are weak androgen - Potency 1/20 to 1/30 of testosteone.