This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sedative-Hypnotics and Parkinsonism, Subject name: Pharmacology
Drug of choice for drug induced Parkinsonism is 
Select and explain. 
A. Levodopa, B. Benserazide, C. Benzhexol, D. Selegiline
C: Benzhexol
Answer: C: Benzhexol 
Explanation: Condition Drug DOC for Parkinsonism Pramipexole/Ropinirole DOC for Drug induced Parkinsonism Benzhexol (Trihexiphenidyl) Most effective drug for Parkinsonism Levo-dopa + Carbidopa Gold standard drug for Parkinsonism Levo-dopa + Carbidopa Disease modifying drug in Parkinsonism Selegiline