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
Causative organism for botryomycosis? 
Select and explain. 
A. S.aureus, B. S.pyogenes, C. Clostridium, D. Bacillus Cereus
A: S.aureus
Answer: A: S.aureus 
Explanation: S.aureus is the most common agent for botryomycosis. It is a mycetoma-like condition.