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
Which of the following drugs has both 5HT4 agonist and D2 antagonist property 
Select and explain. 
A. Ondansetron, B. Metoclopramide, C. Benzhexol, D. Ibutilide
B: Metoclopramide
Answer: B: Metoclopramide 
Explanation: Metaclopramide is a prokinetic drug which is 5HT4 agonist and D2 antagonist used as antienetic.