Given below is a diagrammatic sketch of a portion of the human male reproductive system. Select the correct set of the names of the parts labelled $A, B, C, D$.

• A
  $A$ - Vas deferens,$B$ - Seminal vesicle,$C$ - Prostate,$D$ - Bulbourethral gland
• B
  $A$ - Vas deferens,$B$ - Seminal vesicle,$C$ - Bulbourethral gland,$D$ - Prostate
• C
  $A$ - Ureter,$B$ - Seminal vesicle,$C$ - Prostate,$D$ - Bulbourethral gland
• D
  $A$ - Ureter,$B$ - Prostate,$C$ - Seminal vesicle,$D$ - Bulbourethral gland