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': 'Drug of choice for Narcolepsy \nSelect and explain. \nA. Modafinil, B. Sildenafil, C. Disulfiram, D. Dexemedotimidine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Modafinil is a wakefullness\xa0promoting\xa0drug,used in the treatment of Narcolepsy.', 'role': 'assistant'}]