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: Physiology
[{'content': 'Actions of cholecystokinin include which one of the following? \nSelect and explain. \nA. Contraction of gall bladder, B. Secretion of pancreatic juice rich in enzymes, C. Increases the secretion of enterokinase, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: FUNCTIONS: Stimulates pancreatic acinar cell enzymes secretion. Causes contraction of gallbladder. Secretion of enzyme-rich pancreatic juice. Increases enterokinase secretion', 'role': 'assistant'}]