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': 'Pancreatic juice rich in water and electrolytes poor in enzymes is secreted in response to : \nSelect and explain. \nA. Pancreatozymin, B. Cholecystokinin, C. Secretin, D. Proteins', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Secretin', 'role': 'assistant'}]