Answer is: A. The light moths will be captured by predators more easily than the dark moths, and the population of dark moths will rise.
This is example of natural selection and adaptation.
Predators will easily capture white moths amd their population will drope.
Moth populations can survive in a variety of different situations, because the environment is constantly changing and different alleles are favored.
Genetic variation is important to the population's ability to survive in different situations that affect natural selection. New habitat and increased food supply can increase genetic variation.