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
[{'content': 'The prostatic growth in benign prostatic hypertrophy is due to- \nSelect and explain. \nA. Testosterone, B. 17 estradiol, C. Dihydrotestosterone, D. Oestrogen', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Dihydrotestosterone (DHT), a metabolite of testosterone, is the ultimate mediator for prostatic growth.', 'role': 'assistant'}]