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': 'Diagnosis of tubercular pericarditis can be done by: September 2011 \nSelect and explain. \nA. Chest X-ray, B. USG, C. MRI, D. Aspiration and culture', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D: Aspiration and culture The diagnosis of tuberculous pericarditis may be confirmed by aspiration of the fluid and direct examination or culture for tubercle bacilli', 'role': 'assistant'}]