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: Gynaecology & Obstetrics
[{'content': "Hypothalamic amenorrhea is seen in: \nSelect and explain. \nA. Asherman syndrome, B. Stein-leventhal syndrome, C. Kallman syndrome, D. Sheehan's syndrome", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]