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: Microbiology
[{'content': 'Devi, a 28 year female, has diarrhea, confusion high grade fever with bilateral pneumonitis. The diagnosis is - \nSelect and explain. \nA. Legionella, B. Neisseria meningitidis, C. Streptococcus pneumoniae, D. H. influenzae', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Atypical Pneumonia– 4th MC cause of community-acquired pneumonia (CAP)\n1st three cause of CAP are Streptococcus pneumoniae, Haemophilus influenzae, Chlamydia pneumonia', 'role': 'assistant'}]