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': 'All are features of somatization disorder except - \nSelect and explain. \nA. Frequently changing pain sites, B. Sexual symptoms, C. Paresthesia, D. Professional patients', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Professional patient refers to Munchausen syndrome (factitious disorder).', 'role': 'assistant'}]