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 about narcolepsy - \nSelect and explain. \nA. Sleep sudden, B. Long duration (>3 hrs) of sleep, C. Cataplexy, D. Presents in IInd decade', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Narcolepsy is characterized by bouts of sudden sleep each lasting for 10-30 minutes occurring during the daytime. Age of onset is between 10-20 years.\nAccessory symptoms in Narcolepsy are cataplexy, hypnagogic hallucination, sleep paralysis.', 'role': 'assistant'}]