At which phase is the secretion of gonadotropins ($LH$ and $FSH$) highest during the menstrual cycle?

In a $28$ day human menstrual cycle,ovulation occurs on

Inhibition of secretion of which of the following hormones is necessary for the disintegration of the corpus luteum?

The first menstruation is called $........$,and in humans,the menstrual cycle ceases around the age of $50$ years,which is termed as $........$.

Withdrawal of which of the following hormones is the immediate cause of menstruation?

Given below are two statements with respect to the menstrual cycle.
$Statement-I$: The menstrual phase in the menstrual cycle occurs when an ovulated egg is not fertilized and is thus shed out along with the endometrium.
$Statement-II$: The menstrual phase is often referred to as the 'funeral of an unfertilized egg'.
Choose the most appropriate answer from the options given below.