The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Antiemetic action is due to which propey of metoclopramide?   (A) 5-HT3 antagonist   (B) D, antagonist   (C) 5-HT4 agonist   (D) M3 antagonist
['(B) D, antagonist <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 5-HT3 antagonist \n (B) D, antagonist \n (C) 5-HT4 agonist \n (D) M3 antagonist <> possible answers', '  Antiemetic action is due to which propey of metoclopramide? <> context@']