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 the 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: "Plain chest radiography is the mainstay in diagnosis and monitoring progress of pneumonia. CT is used when\xa0complications are suspected".', 'role': 'assistant'}]