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': "ANCA is NOT associated with which of the following disease: \nSelect and explain. \nA. Wegener's Granulomatosis, B. Henoch Schonlein Purpura, C. Microscopic Polyangitis, D. Churg Strauss syndrome", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer is B (Henoch Schonlein Purpura): Henoch Schonlein Purpura is an ANCA Negative Vasculitis', 'role': 'assistant'}]