Answer: A
Step-by-step explanation:
by laws of natural selection, the lighter beetles won't be able to survive as well as darker beetles because they are easier to spot, since they are a notably different color than the bark and can't camouflage as efficiently as the darker colored beetles. since there will be less light beetles, as most of them will be eaten, dark colored beetles will thrive better because of their more effective camouflage and therefore will reproduce more effectively