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: Psychiatry
[{'content': "A patient has been seeking repeated admissions in various hospitals with a variety of symptoms. He had undergone appendicectomy, cholecystectomy, and other exploratory laparotomies on previous admissions. The most likely diagnosis is - \nSelect and explain. \nA. Conversion reaction, B. Hypochondriasis, C. Munchausen syndrome, D. Ganser 's syndrome", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]