SAT English Practice Question

The author argues that the recent discovery of a new species of dinosaur in the Gobi Desert, the *Giganotosaurus*, has changed the way scientists think about dinosaur evolution. Scientists had previously thought that all large theropods were related to the species *Tyrannosaurus rex*, which lived in North America. However, the discovery of the *Giganotosaurus*, which lived in South America, suggests that large theropods evolved independently in different parts of the world. "This new discovery means that scientists have to rethink their understanding of dinosaur evolution," said Dr. Smith, a paleontologist at the University of California, Berkeley. What is the most important point that the author makes about the *Giganotosaurus* discovery?

1. A.proves that large theropods evolved in South America.
2. B.challenges the long-held belief that all large theropods were related to *Tyrannosaurus rex*.
3. C.provides new information about the evolution of dinosaurs.
4. D.demonstrates the importance of the Gobi Desert for dinosaur research.