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': 'Bilaterally symmetrical contracted scarred kidney is seen in- \nSelect and explain. \nA. Nephrosclerosis, B. Chronic glomerulonephritis, C. End stage renal disease, D. Chronic pyelonephritis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]