SAT English Practice Question

The following passage is from an article discussing the historical significance of a recent scientific discovery. \"The discovery of exoplanets has revolutionized our understanding of the universe. Prior to this discovery, scientists believed that our solar system was unique, with planets orbiting a single star. However, the discovery of exoplanets has shown that there are many other planetary systems, some of which are very different from our own. This discovery has raised fundamental questions about the origin and evolution of planetary systems, and it has led to a new era of exploration in astronomy.\"

1. A.Exoplanets are very different from planets in our solar system.
2. B.The discovery of exoplanets has changed our understanding of the universe.
3. C.Scientists are now exploring the universe in a new way.
4. D.Exoplanets raise fundamental questions about the origin and evolution of planetary systems.