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: Surgery
The posterior urethra is best visualized by - 
Select and explain. 
A. Static cystogram, B. Retrograde urethrogram, C. Voiding cystogram, D. CT cystogram
C: Voiding cystogram
Answer: C: Voiding cystogram 
Explanation: Voiding cystourethrography is the best method to visualize posterior urethra.
Remember,
Urethra can be imaged radiographically in two ways. 

Anterograde techniques → Best for visualization of posterior urethra.

(This is done along with voiding cystourethrography or with voiding following excretory urography)

Retrograde technique → Best for examining the anterior (penile) urethra 

​(Contrast is injected through tip of urethra).