This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other Respiratory Disorders, Subject name: Pediatrics
[{'content': 'A 4-year-old child developed sudden bouts of cough & respiratory distress after eating peanuts. His Chest X ray shows the following; Diagnosis? \nSelect and explain. \nA. Obstructive emphysema right side, B. Obstructive emphysema left side, C. Pneumonia, D. Bronchiectasis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: This chest X-ray shows increased radiolucency of left hemithorax suggestive of hyperinflated chest on left side Foreign body aspiration could be the probable underlying cause- Obstructive emphysema left side', 'role': 'assistant'}]