Which Characteristic Must Be True in Order for a Trait

Multiple Choice

Which characteristic must be true in order for a trait to be impacted by the forces of natural selection and then play a role in the process of biological evolution?

A) The trait must be the result of environmental conditions.
B) The trait must be genetically based.
C) The trait must impact the social rank of its possessor.
D) The trait must be a physical characteristic of the organism.
E) The trait must be a behavioral characteristic of the organism.