This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
[{'content': 'In which of the following conditions bilateral contracted kidneys are characterized seen \nSelect and explain. \nA. Amyloidosis, B. Diabetes mellitus, C. Rapidly progressive glomerulonephritis, D. Benign nephrosclerosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Causes of contracted kidneys ; Chronic glomerulonephrits Benign nephrosclerosis Chronic pyelonephrits', 'role': 'assistant'}]