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: Medicine
[{'content': 'Parkinsonism is induced by all drugs except - \nSelect and explain. \nA. Reserpine, B. Metaclopramide, C. Chlorpromazine, D. Amantadine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]