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': "c-ANCA is characteristic for - \nSelect and explain. \nA. Polyarteritis Nodosa, B. R.P.G.N, C. Henoch's Schonlein Purpura, D. Wegeners granulomatosis", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]