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.

• A
  Both $Statement-I$ and $Statement-II$ are correct.
• B
  Both $Statement-I$ and $Statement-II$ are incorrect.
• C
  $Statement-I$ is correct and $Statement-II$ is incorrect.
• D
  $Statement-I$ is incorrect and $Statement-II$ is correct.