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': 'Normal sized to enlarged kidneys in a patient with chronic failure is indicative of - \nSelect and explain. \nA. Benign nephrosclerosis, B. Chronic glomerulonephritis, C. Chronic interstitial nephritis, D. Primary amyloidosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]