This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pneumonia, Subject name: Medicine
[{'content': 'Most common pulmonary manifestation in AIDS: \nSelect and explain. \nA. TB, B. Pneumonia, C. Bronchiectasis, D. Mycobacterial avium intercellular', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pulmonary disease is one of the most frequent complications of HIV infection. The M/C manifestation of pulmonary disease is Pneumonia. Most common AIDS- defining illnesses are :- Recurrent bacterial pneumonia, Tuberculosis, and Pneumonia due to the unicellular fungus P.jiroveci.', 'role': 'assistant'}]