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
Glipizide, the oral hypoglycaemic drug acts by ? 
Select and explain. 
A. Improving insulin resistance, B. Inhibiting brush border enzyme, C. Helps in insulin secretion, D. Increased glucose uptake by fat cells
C: Helps in insulin secretion
Answer: C: Helps in insulin secretion 
Explanation: Ans. is 'c' i.e., Helps in insulin secretion