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: Surgery
Suppurative osteomyelitis is caused by 
Select and explain. 
A. Staphylococci, B. Streptococci, C. Streptococci first, later replaced by staphylococci, D. Staphylococci first, later replaced by streptococci
C: Streptococci first, later replaced by staphylococci
Answer: C: Streptococci first, later replaced by staphylococci 
Explanation: None