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: Medicine
[{'content': 'Bronchopneumonia complication in measles is due to - \nSelect and explain. \nA. Aspiration, B. Sinusitis, C. Bronchiolar obsturction, D. Immuno-modualtion', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]