Answer:
The correct answer is: mesonephric duct
Explanation:
In mammals, mesonephric duct, also known as the Leydig's duct or Wolffian duct, is a paired organ that is present during the embryonic development.
It forms the trigone of the urinary bladder in both male and females. But it also differentiate to form the organ system of reproductive organs and the urinary system in males.
