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
The most preferred acute emetic for emesis induced by anticancer drugs is 
Select and explain. 
A. Ondensetron, B. Metaclopromide, C. Chlorpromazine, D. Dicyclomine
A: Ondensetron
Answer: A: Ondensetron 
Explanation: None