This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sleep Disorders, Subject name: Psychiatry
[{'content': 'Modafinil is approved by FDA for treatment of all except: \nSelect and explain. \nA. Obstructive sleep apnea syndrome (OSAS), B. Shift work syndrome (SWS), C. Narcolepsy, D. Lethargy in depression', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Modafinil is FDA approved for: Narcolepsy Shift work sleep disorder As an adjunct in obstructive sleep apnea.', 'role': 'assistant'}]