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
Investigation of choice for evaluating pleural diseases: September 2011 
Select and explain. 
A. USG, B. Chest X-ray, C. CT scan, D. MRI
C: CT scan
Answer: C: CT scan 
Explanation: Ans. C: CT scan CT displays pleural abnormalities more readily than either plain radiography or ultrasound, and may distinguish benign from malignant pleural disease