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: Surgery
[{'content': 'Renal function failure is best evaluated by? \nSelect and explain. \nA. DTPA, B. DMSA, C. Iodohippurate, D. All', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. All options are correct i.e., 'a, b, c", 'role': 'assistant'}]