The Increase in Frequency of Dark Phenotypes in Response to Increased

The increase in frequency of dark phenotypes in response to increased pollution is called

A) genetic drift.
B) founder effect.
C) industrial melanism.
D) assortative mating.
E) stabilizing selection. The increase in frequency of dark phenotypes in response to increased pollution is called industrial melanism. The pollution generated by industry causes the trees to become blackened, which allows dark-colored individuals to blend in with the trees better than light-colored individuals.