This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
[{'content': 'Which of the following drug is aipha-glucosidase inhibitor? \nSelect and explain. \nA. Pioglitazone, B. Miglitol, C. Met-formin, D. Nateglinide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Acarbose , voglibose, miglitilol are alpha glucosidase inhibitors nateglinide- glinides, pioglitazone- thiazolidinediones (REF.Essential of medical pharmacology K D TRIPATHI 6 Edition, Page No - 270)', 'role': 'assistant'}]