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: Pharmacology
[{'content': 'Drug of choice in drug induced Parkinsonism is ? \nSelect and explain. \nA. Levodopa, B. Carbidopa, C. Amantadine, D. Benzhexol', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Benzhexol", 'role': 'assistant'}]