which is the best definition of directional selection?\n a process by which two species can no longer…

which is the best definition of directional selection?\n a process by which two species can no longer reproduce\n a process by which one of the extreme variations of a trait is favored\n a process by which both extreme variations of a trait are favored\n a process by which average individuals in a population are favored
Answer
Brief Explanations:
Directional selection in biology is when one extreme of a trait is favored over others in a population over time, leading to a shift in the population's trait distribution.
Answer:
a process by which one of the extreme variations of a trait is favored