This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (E.N.T.), Subject name: ENT
[{'content': 'Acute Otitis media in Children is most commonly due to \nSelect and explain. \nA. Morexiello catarrhalis, B. H. influenza, C. Streptococcus pneumoniae, D. Staphylococcus aureus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (C) Streptococcus pneumoniae # Causative Organisms of ASOM:> Most common organisms in infants and young children are Streptococcus pneumoniae (30%), Haemophilus influenzae (20%) and Moraxella catarrhalis (12%).> Other organisms include Streptococcus pyogenes, Staphylococcus aureus & sometimes Pseudomonas aeruginosa.> In about 18-20%, no growth is seen.> Many of the strains of H. influenzae & Moraxella catarrhalis are ft-lactamase producing.', 'role': 'assistant'}]