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': 'Normal FSH level in adult male ? \nSelect and explain. \nA. 10-20 IU/L, B. 20-40 IU/L, C. 40-60 IU/L, D. 60-80 IU/L', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 10-20 IU/L", 'role': 'assistant'}]