Question

Darwin observed that a large sea bird on the Galapagos Islands, called a cormorant, could not fly, but the same bird on the mainland could. His hypothesis was that __________.
A-there was no logical explanation for why the birds were different
B-the two birds were unrelated
C-the birds on the islands did not need to fly in order to survive
D-conditions on the island made it impossible for the birds to fly

Answer 1

well I think it's option C.