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: Microbiology
[{'content': 'Causative organism for botryomycosis? \nSelect and explain. \nA. S.aureus, B. S.pyogenes, C. Clostridium, D. Bacillus Cereus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: S.aureus is the most common agent for botryomycosis. It is a mycetoma-like condition.', 'role': 'assistant'}]