Some tortoises that feed on grasses were observed on an island. Some years later, an environmental change caused the grasses to grow a bit higher off the ground. What evolutionary feature will you
expect to see in the tortoises on the island?
A. The tortoises will develop longer necks.
B. The tortoises will develop thicker shells.
C. The tortoises will develop longer tails.
D. The tortoises will develop thicker tongues.