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: Pediatrics
[{'content': 'Most common cause of Rapid progressive glomerulonephritis in children is \nSelect and explain. \nA. Good Pasteur syndrome, B. Membranous glomerulonephritis, C. Ig A nephropathy, D. Pauci - immune glomerulonephritis', 'role': 'user'}, {'content': "Answer: D \nExplanation: Pauci - immune glomerulonephritis like Churg Strauss, Wegener's\xa0glomerulonephritis have highest risk for RPGN.", 'role': 'assistant'}]