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': 'All are seen in Klinefelter syndrome, except: WB 07 \nSelect and explain. \nA. Mental retardation, B. Male phenotype, C. Azoospermia, D. Low FSH level', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Low FSH level', 'role': 'assistant'}]