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: Pathology
The prostatic growth in benign prostatic hypertrophy is due to- 
Select and explain. 
A. Testosterone, B. 17 estradiol, C. Dihydrotestosterone, D. Oestrogen
C: Dihydrotestosterone
Answer: C: Dihydrotestosterone 
Explanation: Dihydrotestosterone (DHT), a metabolite of testosterone, is the ultimate mediator for prostatic growth.