Please Help me and Hurry please

The peppered moth population in a locality has light and dark moth varieties. Which moth variety is likely to survive if the environment of the locality becomes highly polluted?

A The dark variety, as they are not visible on the dark tree barks
B The dark variety, as they are not visible on the light tree barks
C The light variety, as they are not visible on the dark tree barks
D The light variety, as they are not visible on the light tree barks