Answer:
(A) ecology
Step-by-step explanation:
Ecology is the name of one of the branches of biology whose main objective is to study the interactions, influences and relationships between living beings and the environment around them, where they live.
In this case, if a cinetista wishes to do a scientific study on the relationship between climate, vegetation and leaf-cutting ants in the tropical forests of Costa Rica, that study will be categorized as an ecological study, that is, this is an example of an ecological study, already that the scientist is evaluating the leaf-cutting ant in relation to the environment in which it lives.