This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vasculitis, Subject name: Medicine
[{'content': "ANCA negative vasculitis among the following is \nSelect and explain. \nA. Wegener's granulomatosis, B. Churg - Strauss syndrome, C. Polyaeritis nodosa, D. Microscopic polyangiitis", 'role': 'user'}, {'content': 'Answer: C \nExplanation: c- ANCA predominant vasculitis p- ANCA predominant vasculitis 1. Wegener`s granulomatosis Microscopic polyangiitis Churg-Strauss syndrome Crescentic glomerulonephritis', 'role': 'assistant'}]