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
Extrapyramidal symptoms is best treated with - 
Select and explain. 
A. Procyclidine, B. Metochlopramide, C. Haloperidol, D. Trihexyphenidyl
D: Trihexyphenidyl
Answer: D: Trihexyphenidyl 
Explanation: None