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': 'Cataplexy is seen in - \nSelect and explain. \nA. Catatonic schizophrenia, B. Narcolepsy, C. Chronic depression, D. Neuro - malignant syndrome', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cataplexy is the most common accessory symptom of Narcolepsy.', 'role': 'assistant'}]