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': 'Effect of GLP-1 ? \nSelect and explain. \nA. Increased aldosterone secretion by adrenal, B. Increased PTH secretion, C. Increased insulin secretion from beta-cells of pancreas, D. Increased testosterone secretion from Leydig cells', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Increased insulin secretion from beta-cells of pancreas", 'role': 'assistant'}]