What does a human ovum contain?

How many primary follicles are left in each ovary in a human female at puberty?

$A$ - Spermatids are formed from secondary spermatocytes.
$R$ - The spermatids are transformed into spermatozoa by the process called spermiogenesis.

The function of mitochondria in sperm is

Spermatogenesis is affected by which of the following?

Given below are two statements:
Statement $I$:
The release of sperms into the seminiferous tubules is called spermiation.
Statement $II$:
Spermiogenesis is the process of formation of sperms from spermatogonia.
In the light of the above statements,choose the most appropriate answer from the options given below: