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: Unknown
[{'content': 'Mechanism of action of metformin \nSelect and explain. \nA. Increased peripheral glucose uptake, B. Stimulate insulin release, C. Decrease glucose resorption in intestine, D. None of the above', 'role': 'user'}, {'content': "Answer: A \nExplanation: (Refer: K. D. Tripathi's Essentials of Medical Pharmacology, 6th edition, pg no:269)\nIncreased peripheral glucose uptake\nOral hypoglycemic agents\n\nEnhance insulin secretion", 'role': 'assistant'}]