This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'Palpable purpura could occur in the following conditions, except - \nSelect and explain. \nA. Thrombocytopenia, B. Small-vessel vasculitis, C. Disseminated gonococcal infection, D. Acute meningococcemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref - Semantischolar.org', 'role': 'assistant'}]