Read the following statements regarding evolution (A-D). A. Whales, bats, cheetah, and humans (all mammals) share similarities in the pattern of bones of forelimbs. B. The diversity of life forms on earth has been changing over millions of years. C. About 65 million years ago the dinosaurs suddenly disappeared from the earth. D. A single-step large mutation is called speciation and explained by Herbert Spencer. How many statements from the above is/are correct?