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
Drug of choice in drug induced Parkinsonism is ? 
Select and explain. 
A. Levodopa, B. Carbidopa, C. Amantadine, D. Benzhexol
D: Benzhexol
Answer: D: Benzhexol 
Explanation: Ans. is 'd' i.e., Benzhexol