The correct answer to this question is option D – I Letter I, which represents corpus luteum, will produce progesterone, estrogens, relaxin, and inhibin. Progesterone, estrogens, relaxin, and inhibin are vital hormones involved in the menstrual cycle as well as pregnancy. Corpus luteum is a hormone-secreting mass of cells present in the ovary. It produces the hormones mentioned above during early pregnancy.
During ovulation, the egg is released from the matured follicle, and the egg can get fertilized. The follicle becomes the corpus luteum, and it produces hormones that sustain pregnancy in the 8 to 9 weeks until the growing fetus is able to make enough hormones to sustain it. If fertilization does not occur, the corpus luteum stops secreting hormones, and it degenerates after some days.