Which one of the following acts as a urinogenital organ in human males?

The seminiferous tubules of the testis open into the vasa efferentia by:

Identify the odd one out.

Given below are two statements:
Statement-$I$: The scrotum helps in maintaining the low temperature of the testes.
Statement-$II$: Low temperature,compared to the normal internal body temperature,is necessary for spermatogenesis.
In the light of the above statements,choose the most appropriate answer from the options given below.

Leydig cells are found in

......... performs a dual function as a primary sex organ as well as an endocrine gland.