What divides the testis into lobules?

Match the structures/parts of the human male reproductive system in Column $I$ with their respective explanation in Column $II$ and select the correct answer from the given options.

Column $I$	Column $II$
$i$. Prepuce	$a$. Fibromuscular band that retains testis in scrotum.
$ii$. Penis	$b$. Primary male reproductive gonad.
$iii$. Testis	$c$. Loose fold of skin covering glans penis.
$iv$. Gubernaculum	$d$. Male copulatory organ.

Even with the contraction of the spermatic cord,the testes of a man are not pulled into the abdominal cavity. This is due to which of the following structures?

Leydig cells are found in

The prostatic fluid forms about . . . . . . of the total volume of semen. (in $\%$)

Failure of the descending testis into the scrotum is known as: