What is the oestrous cycle?

Identify the correct labeling in the diagram of a human ovary.

Assertion : Mammalian ova produces hyaluronidase.
Reason : The eggs of mammal are microlecithal and telolecithal.

Describe the location and function of the Bulbourethral gland and Corpus luteum.

$I -$ Sperm,$II -$ Testosterone,$III -$ Relaxin,$IV -$ Ovum,$V -$ Estrogen,$VI -$ Progesterone.
Produced by human males $- P$
Produced by human females $- Q$
$P$ $Q$

Consider the following:
$A.$ The reductive division for the human female gametogenesis starts earlier than that of the male gametogenesis.
$B.$ The gap between the first meiotic division and the second meiotic division is much shorter for males compared to females.
$C.$ The first polar body is associated with the formation of the primary oocyte.
$D.$ Luteinizing Hormone $(LH)$ surge leads to disintegration of the endometrium and onset of menstrual bleeding.
Choose the correct answer from the options given below: