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
[{'content': 'An infant with a past history of ear infection is suspected to have meningitis. Organism commonly responsible for such a presentation would be: \nSelect and explain. \nA. Haemophilus influenzae, B. Moraxella catarrhalis, C. Pseudomonas, D. Streptococcus pneumoniae', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Meningitis is the most common intracranial complication of otitis media Most common organism causing acute suppurative otitis media in infants & young children are streptococcus pneumonia (30%), Haemophilus influenza (20%) and Moraxella catarrhalis (12%).', 'role': 'assistant'}]