Which of the following plays the important role of producing oxygen in a biome? Thank you ❤️

I wanna say its C cuz trees produce the most of earth oxygen comes from the oceans

Explanation:

Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean.

Im not 100% sure but i hope this helps :)

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 : )