Which of the following is not a secondary reproductive organ?

Secretion of large quantities of estrogen causes:

Which of the following is a female hormone?

Match the following columns:

Column-$I$	Column-$II$
$(1)$ Secretory phase	$(a)$ $14^{th}$ day
$(2)$ Ovulation	$(b)$ $1-5$ days
$(3)$ Luteal phase	$(c)$ $15-28$ days
$(4)$ Menstrual phase	$(d)$ $6-13$ days
$(5)$ Follicular phase	$(e)$ $15-28$ days

The figure given below shows the sectional view of an ovary. Select the option which gives the correct identification of the marked structure ($A$ to $D$) and its feature.

Which is the correct graphical representation of the pituitary hormone and ovarian hormone levels during the menstrual cycle?