Scientists Found That Different Beak Shapes Correlate with Different Mating

Multiple Choice

Scientists found that different beak shapes correlate with different mating songs in Darwin's finches.Which hypothesis does this support?

A) Darwin's finches are not different species according to the Biological Species Concept.
B) Adaptation to different food sources led to behavioral isolation in Darwin's finches.
C) Mating songs are primarily determined by the acoustics of different beaks.
D) Adaptation to different food sources likely occurred after reproductive isolation in Darwin's finches.