How does artificial selection affect variation within a species when a specific trait continues to be bred?

It reduces the amount of variation.
It increases the amount of variation.
It has no impact on the amount of variation.
It causes variation to fluctuate with each generation.

Question

How does artificial selection affect variation within a species when a specific trait continues to be bred?

It reduces the amount of variation.
 It increases the amount of variation.
 It has no impact on the amount of variation.
 It causes variation to fluctuate with each generation.

Gucchi · Answer

am i right with A? @vocaloid can you check this one out

Gucchi · Answer

@sailor