Which of the following accurately describes a cause-and-effect relationship, based on information in the passage?
O A. The different finch populations have different beak shapes.
Consequently, they chose to populate different islands.
O B. A small population of finches landed on an island with different
plants. As a result, finches with beak shapes that allowed them to
eat on the island survived.
O c. Because Darwin observed the beaks and behavior of finches, he
boarded the HMS Beagle for a five-year voyage.
O D. The finches left the South American mainland in order to find food
on the islands.