Either A or D I’m not 100% sure but it’s the only thing that makes since
They have to eat
They have to hydrate
They have to evolve
They have to adapt
They have to mate
Anthropologist use the term Enculturation to refer to the process of learning your culture, ordinarily as a child.
I believe the answer would be A, because if water didn’t exist, there would be no presence of living things on earth. Water is a resource for life, thus, presence of living things.
Search on google and hope they have the answer :)