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
The investigation of choice for imaging of urinary tract tuberculosis is – 
Select and explain. 
A. Plain X–ray, B. Intravenous urography, C. Ultrasound, D. Computed tomography
B: Intravenous urography
Answer: B: Intravenous urography 
Explanation: Since demonstration of the typical calyceal, ureteral and vesical abnormalities is critical to establish the diagnosis of tuberculosis, conventional radiological studies (e.g. IVP) remain the procedures of choice, while USG and CT have a limited role.