This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': 'Broncho-pneumonia due to measles occurs due \nSelect and explain. \nA. Sinusitis, B. Immunomodulation, C. Bronchial obstruction, D. Aspiration', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Question repeated', 'role': 'assistant'}]