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': 'Following hormones are produced by endocrinal pa of pancreas: \nSelect and explain. \nA. Insulin, B. Somatostatin, C. Glucagons, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A i.e. Insulin; B i.e. Somatostatin; C i.e. Glucagon', 'role': 'assistant'}]