Biology

The correct answer is: A.The color change in peppered moths due to industrial pollution.

Explanation:

The color change in peppered moths is a classic example of gradualism observed in nature. Over time, as industrial pollution darkened tree bark, the population of peppered moths gradually shifted from mostly light-colored individuals to darker-colored ones, because the darker moths were better camouflaged and therefore had a higher survival rate. This change occurred gradually over many generations due to natural selection, driven by environmental factors.