The Cretaceous-Tertiary extinction event was caused when an asteroid impacted Earth approximately 66 million years ago, near what is now the Gulf of Mexico. The indirect effects of the impact affected the entire globe. The event resulted in the extinction of nearly 75 percent of all plant and animal species on Earth, including the majority of dinosaur species. Which of the following likely best describes why most of these species went extinct?

Rapid climate and habitat change
A population with high genetic biodiversity is better able to respond to environmental stressors
.Genetic variation within each species and number of species present