This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
[{'content': 'Atypical pneumonia is caused by - \nSelect and explain. \nA. Staph aureus, B. Stre pneumonia, C. P carinii, D. H influenzae', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., P carinii o Important causes of atypical pneumonia are Mycoplasma pneumoniae (most common cause), viruses (influenza, RSV, adenovirus, rhinovirus, corona virus), legionella, chlamydia, coxiella bumetti, and P. carinii.", 'role': 'assistant'}]