Male Guppies Are Known for Their Bright Colors

Multiple Choice

Male guppies are known for their bright colors.Having bright colors attracts mates,but it also attracts predators.So in an environment with a lot of predators,male guppies have more dull colors.In an experiment,guppies were removed from an area with predators to an area without predators.Over a period of 12 months the population became much more colorful.This is an example of a response to:

A) directional selection.
B) stabilizing selection.
C) disruptive selection.
D) mutation.