The corpus luteum secretes which of the following?

The following graph shows the relative concentrations of the four hormones present in the blood plasma of a woman during her menstrual cycle. Identify the hormones $A, B, C$ and $D$.

In human females,which of the following statements is incorrect?

Match the items given in Column $I$ with those in Column $II$ and select the correct option given below:

Column $I$	Column $II$
$(a)$ Proliferative Phase	$(i)$ Breakdown of endometrial lining
$(b)$ Secretory Phase	$(ii)$ Follicular phase
$(c)$ Menstruation	$(iii)$ Luteal Phase

Which of the following is a common indicator of reproduction and occurs between menarche and menopause?

The menstrual cycle in a normal adult woman is of (in $days$)