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': 'Depot preparations are available for: \nSelect and explain. \nA. Haloperidol, B. Risperidone, C. Olanazepine, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A, B, C .e. Haloperidol, Risperidone, Olanazepine', 'role': 'assistant'}]