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': 'Renal papillary necrosis is almost always associated with one of the following conditions: March 2004 \nSelect and explain. \nA. Diabetes mellitus, B. Analgesic nephropathy, C. Chronic pyelonephritis, D. Post streptococcal glomerulonephritis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A i.e. Diabetes mellitus', 'role': 'assistant'}]