Roberta is a scientist studying the evolution of reptiles. She noticed that dinosaur fossils are found only in older layers of rock. New layers of rock have lizard fossils that look similar to species that are alive today. What is a general conclusion Roberta can make about how reptiles have changed over time? A. Dinosaurs lived after lizards that share similarities with lizards that are alive today. B.Dinosaurs lived before lizards that share similarities with lizards that are alive today. C.Dinosaurs lived at the same time as lizards that share similarities with lizards that are alive today. D.Roberta cannot make any conclusions about how reptiles have changed over time based on the evidence mentioned above.