This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Renal physiology, Subject name: Physiology
[{'content': 'Effect of CCK on gut is \nSelect and explain. \nA. Increases gastric acid secretion, B. Increase small intestine peristalisis, C. Increases gastric motility, D. Relaxes gall bladder', 'role': 'user'}, {'content': 'Answer: B \nExplanation: CCK mediates digestion in the small intestine by inhibiting gastric emptying. It stimulates the acinar cells of the pancreas to release a juice rich in pancreatic digestive enzymes (hence an alternate name, pancreozymin) that catalyze the digestion of fat, protein, and carbohydrates Ref: guyton and hall textbook of medical physiology 12 edition page number:442,443,444', 'role': 'assistant'}]