Which event could explain the changes in the population

Last updated: 2/7/2024

Which event could explain the changes in the population shown in the graph OA Over several generations the proportion of light colored moths stayed constant but mutations produced new phenotypes that were not included in the study B Over several generations light colored moths became more common because the tree bark became lighter in color as pollution decreased in the habitat C Over several generations dark colored moths became more common as the trees in the habitat became coated in soot pollution OD Dark colored moths became more common because populations have random variations in phenotypes from year to year