The HR diagram represents stages in the life cycle of a star. Which type of star is C?

red giant

white dwarf

main sequence

red supergiant

the answer would be d

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )

i believe the answer would be b. hope it : )