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(s) used in treatment of Attention-Deficit Hyperactivity Disorder : \nSelect and explain. \nA. Atomoxetine, B. Methylphenidate, C. Dexmethylphenidate, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A. i.e. Atomoxetine; B. i.e. Methylphenidate; C. i.e. Dex methyl phenidate', 'role': 'assistant'}]