An Effective Antiemetic Drug Given Intravenously to Block Receptors on the Endings

An effective antiemetic drug given intravenously to block receptors on the endings of nerve cells in the brain and gastrointestinal tract, given once a day in a 5-minute infusion, is called

A) prochlorperazine (Compazine) .
B) metoclopramide (Reglan) .
C) granisetron (Kytril) .
D) pentoxifylline (Trental) .