Question

what is likely to happen if two species exert selective pressures on each other?
divergent evolution
convergent evolution
coevolution

Explanation:

Coevolution occurs when two or more species exert selective pressures on each other and evolve in response to one another. Divergent evolution is when a single species evolves into different forms. Convergent evolution is when unrelated species evolve similar traits. Since the question is about two species exerting selective pressures on each other, coevolution is the relevant concept.

Answer:

Coevolution