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
[{'content': 'Hi antagonist has all the functions, except: \nSelect and explain. \nA. Antipruritic, B. Sedation, C. Decrease Gastric acid secretion, D. Antiveigo', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Decrease Gastric acid secretion', 'role': 'assistant'}]