This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sleep disorders and eating disorders, Subject name: Psychiatry
[{'content': 'Not true about Narcolepsy is \nSelect and explain. \nA. Cataplexy, B. Sleep architecture normal, C. Loss of muscle tone, D. Hallucination', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Narcolepsy is neither a typs of epilepsy nor a psychogenic disturbance. It is an abnormality of the sleep mechanisms specifically, REM inhibiting mechanisms. Ref: Synopsis of Psychiatry, 11e, pg 547.', 'role': 'assistant'}]