The diagram shows that many generations of genetic changes led to the modern-day giraffe.
Based on the diagram, it is plausible that the giraffe formed
A
a narrower head to reach deep into trees and eat food that is hard to reach.
B
a longer neck to reach food in higher areas when food is scarce.
C
more spots to attract mates to produce offspring.
D
longer legs to attack predators that approach.
