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': 'Glipizide, the oral hypoglycaemic drug acts by ? \nSelect and explain. \nA. Improving insulin resistance, B. Inhibiting brush border enzyme, C. Helps in insulin secretion, D. Increased glucose uptake by fat cells', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Helps in insulin secretion", 'role': 'assistant'}]