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': 'A 3-year-old female child developed fever, cough, and respiratory distress. On chest, X-ray consolidation is seen in right lower lobe. She improved with antibiotics but on follow up at 8 weeks was again found to have increasing consolidation in right lower lobe. Your next investigation would be \nSelect and explain. \nA. Bronchoscopy, B. Bacterial culture of the nasopharynx, C. CT scan of the chest, D. Allergen sensitivity test', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]