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': 'True about secretin is: \nSelect and explain. \nA. Increased gallbladder contraction and HCO3 rich pancreatic fluid, B. Increased gastrin secretion, C. Gastric hypermotility, D. Increase enzyme rich pancreatic fluid', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Increased gallbladder contraction and HCO3 rich pancreatic fluid', 'role': 'assistant'}]