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': 'In a child with foreign body in bronchus, next step is: \nSelect and explain. \nA. Rigid bronchoscopy, B. Chest X-ray, C. Flexible endoscopy, D. Direct laryngoscopy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In the question, child has already been diagnosed with bronchial foreign body. Hence next step would be its removal and treatment of choice in a child with foreign body in bronchus is Rigid bronchoscopy.', 'role': 'assistant'}]