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: Medicine
[{'content': 'The term end-stage renal disease (ESRD) is considered appropriate when GFR falls to \nSelect and explain. \nA. 50% of normal, B. 25% of normal, C. 10-25% of normal, D. 5-10% of normal', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., 5-10% of normal", 'role': 'assistant'}]