Answer D. All of the above
This question has already been answered by user Pink Floyd.
Answer:
Progesterone
Explanation:
Progesterone is sometimes called the “hormone of pregnancy” and has many roles relating to fetal development. It converts the endometrium to its secretory stage to prepare the uterus for implantation. At the same time, it affects the vaginal epithelium and cervical mucus, making them thick and impenetrable to sperm.
Answer:
nothing is there
Explanation:
what pie chart are you telling
