A group of plant eating animals are separated from their population. In the new environment, the only edible vegetation grows at the top of tall trees. Which of the
following variations would be the most useful adaptation to members of the group?
A. Wide flat teeth adapted to grinding plant material
B. Specialized digestive systems for the vegetarian diet
C. Long neck that allows for higher reaching
D. Larger ears and eyes located on sides of head to detect predator