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: Pharmacology
[{'content': 'All of the following are true about metformin EXCEPT: \nSelect and explain. \nA. Causes little or no hypoglycemia in non diabetic patients, B. Acts by increased insulin secretion, C. Increases peripheral utilization of glucose and decreases absorption of glucose from intestine, D. When given with alcohol, increases risk of lactic acidosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]