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': 'Pappu 2 yrs old boy presents in the causality with 11/0 sudden onset of respiratory difficulty & strider on ausculation .i,ed breath sound & wheeze on the side. The X-Ray shows opaque hamithorex what will be diagnosis- \nSelect and explain. \nA. Pnumothorax, B. Acute epiglottitis, C. Massive plural effusion, D. Foreign body aspiration', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Foreign body aspiration', 'role': 'assistant'}]