The graph shows the results of a famous biological experiment. In the experiment, Kettlewell believed that the peppered moth demonstrated how environmental pressures influence evolution. He studied two areas. Birmingham was a rural wood, with natural conditions. Dorset was an urban, industrial area. The moths use tree trunks to camouflage themselves against birds, which are their major predators. Natural gene variations produce a light form of the peppered moth, and a dark form, meaning that they are not equally visible. All BUT ONE statement is supported by Kettlewell's data. That is
A) Dark moths had a survival disadvantage in industrial Dorset.
B) Light moths had a survival advantage in forested Birmingham.
C) Light moths had a survival disadvantage in industrial Dorset.
D) Dark moths had a survival disadvantage in forested Birmingham.