In the Case of the Peppered Moths in England,when Kettlewell

Multiple Choice

In the case of the peppered moths in England,when Kettlewell set up cameras to document that more white or black moths were eaten by birds on clean or sooty trees,he was verifying which factor involved in evolution by natural selection?

A) The organisms vary in traits and that these traits may be acquired during a lifetime.
B) The variation is inherited.
C) More young are born than can survive,so there will always be competition.
D) Some individuals are better adapted to a particular environment than other individuals.