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
Monotherapy with which of the following antidiabetic drug can cause hypoglycemia ? 
Select and explain. 
A. Metformin, B. Glibenclamide, C. Pioglitazone, D. All of the above
B: Glibenclamide
Answer: B: Glibenclamide 
Explanation: None