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': 'In Membranoprol ferative glomerulonephritis, the characteristic feature is: March 2004 \nSelect and explain. \nA. Thickening and splitting of capillary basement membrane, B. Nil lesion, C. Mesangial cell proliferation, D. Fibrin cap', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A i.e. Thickening and splitting of capillary basement membrane', 'role': 'assistant'}]