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: Physiology
[{'content': 'Major function of dihydrotestosterone? \nSelect and explain. \nA. Spermatogenesis, B. Development of male external genitalia, C. Erythropoiesis, D. Development of male internal genitalia', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Development of male external genitalia.", 'role': 'assistant'}]