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: Radiology
[{'content': 'Hyperinflation of lung in CXR is seen in - \nSelect and explain. \nA. CCF, B. Congenital lobar emphysema, C. Diaphragmatic hernia, D. Foreign body', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Hypertranslucency due to hyperinflation may occur in congenital lobar emphysema.', 'role': 'assistant'}]