Please help!!!!
 Which fact supports the conclusion that animal traits change because of domestication?
 When they no longer had to survive in the wild, sheep brains began to shrink.
 Americans began to crossbreed animals to produce traits suitable to a new climate.
 Because of their familiarity, early colonists chose to raise 
 European cattle breeds.
 Different breeds are available to consumers because of the varied textures of meats.