The correct option is C Progesterone, Estrogen, Relaxin, Inhibin
After ovulation, the ruptured follicle is converted to a structure called corpus luteum. The primary hormone produced from the corpus luteum is progesterone, but it also produces inhibin A, estrogen and relaxin.
Progesterone supports the pregnancy. Progesterone also acts on the mammary glands and stimulates the formation of alveoli (sac-like structures which store milk) and milk secretion.
Inhibin A prevents the secretion of follicle-stimulating hormone.
Estrogen causes changes in the uterus to make it more suitable for implantation of the fertilized ovum and embryo nourishment.
Relaxin is known for cervical softening, loosening the pelvic girdle as preparation for pregnancy.