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: ENT
Commonest causative organism for ASOM in 2 years child is: 
Select and explain. 
A. Pneumococcus, B. H. influenzae, C. Staphylococcus, D. Streptococcus
A: Pneumococcus
Answer: A: Pneumococcus 
Explanation: Most common cause of acute otitis media:Streptococcus pneumonia / pneumococcus (35-40% cases)H. influenza (25-30%)M. catarrhalis (10-20%)