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': 'Drugs used in schizophrenia include: \nSelect and explain. \nA. Chlorpromazine, B. Haloperidol, C. Olanzapine, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A i.e. Chlorpromazine; B i.e. Haloperidol; C i.e. Olanzepine', 'role': 'assistant'}]