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: Pathology
[{'content': 'NOT a cause of granular contracted kidney ? \nSelect and explain. \nA. Diabetes mellitus, B. Chronic pyelonephritis, C. Benign nephrosclerosis, D. Chronic glomerulonephritis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Diabetes mellitusCauses of Granular contracted kidney ?Chronic glomerulonephritis (symmetric)Chronic pyelonephritis (asymmetric) o Benign Nephrosclerosis (Symmetric) Sometimes, Diabetes too can cause granular contracted kidney", 'role': 'assistant'}]