Choose one of the following statements that provides evidence from the fossil record for the cause of the mass extinction at the end of the Mesozoic Era? A. A massive crater off the coast of the Yucatan peninsula is dated to be the same age as the extinction event.
B. The gouges in rock left behind by massive glaciers in the Cenozoic Era are shown to have occurred shortly after the mass extinction occurred.
C. Fossils of certain animal types went extinct while others thrived, showing that the environment underwent very slow changes over time.
D. Fossils of animals became scarce while fossils of plant life became more diverse in the rock strata created during the mass extinction.