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: Pediatrics
The commonest organism causing Empyema in a child under 2 years – 
Select and explain. 
A. E.Coil, B. Staphylocccus, C. Pneumococcus, D. Klebsiella
B: Staphylocccus
Answer: B: Staphylocccus 
Explanation: None