Where are the $Leydig$ cells found?

If for some reason,the $vasa$ $efferentia$ in the human reproductive system get blocked,the gametes will not be transported from

Which fluid is not present in semen?

Accessory glands of the human male reproductive system are:

Why are the testes situated in the scrotum,which is located outside the abdominal cavity?

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.