In Europe, dark peppered moths were rare before the 1850's and light colored moths were plentiful. After the industrial revolution, pollution covered the tree trunks where the moths lived. The light moths declined in number and the dark colored moths increased in number. Which of the following explains what happened to the two moth populations? Group of answer choices

A. The dark colored moths did not blend in well on the light colored trees and were left alone by the birds.

B. The trees became lighter, and since the light

C. The trees became darker, and since the light-colored moths could not adapt to the change in their environment, they were easily seen and eaten by the birds.

D. The dark-colored moths blended in better on the dark colored trees and were eaten more by the birds.