The acrosome of a sperm contains:

Acrosome is a part of

Arrange the stages of human spermatogenesis in the correct sequence.

Draw a labeled diagram of a human sperm cell.

Given below are two statements:
$Statement-I$: At the onset of puberty, the pituitary gland begins secretion of gonadotropin releasing hormone.
$Statement-II$: $GnRH$ initiates the significant increase in the secretion of follicle stimulating hormone $(FSH)$ which induces gametogenesis.
In light of above statements, choose the correct appropriate answer from the options given below.

In the given diagram, choose the correct option for the labels $X$, $Y$, and $Z$.