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 seen in Narcolepsy: \nSelect and explain. \nA. Sleep paralysis, B. Sleep attack, C. Catalepsy, D. Cataplexy', 'role': 'user'}, {'content': "Answer: C \nExplanation: Narcolepsy is characterized by Cataplexy (loss of muscle tone) not Catalepsy.\nCatalepsy or catatonia is akinetic mutism & stupor seen in\xa0severe depression, schizophrenia.\nRemember: Two lepsy's can not be together, Catalepsy is not seen in Narcolepsy.", 'role': 'assistant'}]