Answer
B
Work Step by Step
Option A is incorrect. Natural selection is the process by which nature's forces provides the selection pressure for changes in species.
Option C is incorrect. Extinction is the process by which specimens of a species no longer exist.
Option D is incorrect. An adaptation is a change in a species in response to pressure from the environment.
Option B is correct. Artificial selection is the process by which humans selectively breed organisms that have desirable characteristics.