This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pathogenesis, Subject name: Surgery
Commonest cause of cellulitis is 
Select and explain. 
A. Staphylococcus, B. Streptococcus, C. E. coli, D. Hemophilus
B: Streptococcus
Answer: B: Streptococcus 
Explanation: Ans. (b) Streptococcus(Ref: Bailey 26th 55)* Most common cause of cellulitis is Streptococci. Other causes include Staphylococci, and C.Perfringens