Some Finches on the Galápagos Islands Eat Insects, an Unusual

Multiple Choice

Some finches on the Galápagos Islands eat insects, an unusual food for finches to eat. These finches

A) could not survive if they were moved from their island.
B) learned their habits from local birds.
C) switched to insects because they tasted better than their usual food.
D) fill roles that birds other than finches would fill in other places.