PLEASE HELP FASTTT WILL GIVE THE FIRST ANSWER THE BRAINLIEST!!!!!!! 70 POINTS!!!!!!!!

A small number of finches are removed randomly from the wild and placed in a protected bird area. They are given as much food as they need and have plenty of space.
Why would not occur in this population?
A. The birds compete for limited resources.
B. There is no genetic variation in the finches.
C. There is no reason for genetic mutation to occur.
D. The population has not reached carrying capacity.natural selection