Which hormone level reaches peak during the luteal phase of the menstrual cycle?

The figure given below illustrates the changes taking place during the human menstrual cycle. Identify hormones $A, B, C, D$ and $E$ from the figure. In the boxes shown in the figure, write the name of the hormone (or hormones) controlling the stage in the human menstrual cycle.

Which one of the following is least present in the endometrium during the proliferative phase of the menstrual cycle?

Changes in $GnRH$ pulse frequency in females control the secretion of ..........

Arrange the events of the menstrual cycle in the order they occur:
$I.$ Secretion of $FSH$
$II.$ Growth of corpus luteum
$III.$ Growth of follicle and oogenesis
$IV.$ Ovulation
$V.$ Sudden increase in the level of $LH$

What is the menstrual cycle?