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: Medicine
[{'content': 'Which of the sulfonylureas is best choice in chronic kidney disease patients \nSelect and explain. \nA. Glimipride, B. Glibenclanide, C. Glipizide, D. Glyburide', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Glipizide is the sulphoylurea which is the best and safest among the group for use in ckd patients Ref: Harrison page no 2265,', 'role': 'assistant'}]