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': 'Not true in narcolepsy is- \nSelect and explain. \nA. Cataplexy, B. Sleep architecture normal, C. Loss of muscle tone, D. Hallucination', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Sleep architecture normalThere is disturbed REM sleep.Cataplexy (sudden loss of muscle tone) is the most common accessory symptom.There may be hallucinations mostly hypnagogic and hypnopompic', 'role': 'assistant'}]