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: Dental
[{'content': 'Palpable pupura is seen in all conditions except – \nSelect and explain. \nA. Cryoglobulinuria, B. H.S. pupura, C. Gaint cell arteritis, D. Drug induced vasculitis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Vasculitis of small vessels cause palpable purpura, whereas giant cell arteritis affects large vessels.', 'role': 'assistant'}]