If Differences in Antipredator Behavior Exist Between Two Populations of the Same

If differences in antipredator behavior exist between two populations of the same species inhabiting different environments, then we could conclude that:

A) different selection pressures drive differences in antipredator behavior.
B) different selection pressures and/or differences in past experience could explain interpopulational differences in antipredator behavior.
C) neither natural selection nor learning explain interpopulational differences in antipredator behavior.
D) a single predator species must exert different influences on the prey in each environment.
E) differences in environmental conditions affected the experiences that individuals obtained, and thus the antipredator tactics that were adopted.