The Last Major Dinosaurs Were Wiped Out as a Consequence

Multiple Choice

The last major dinosaurs were wiped out as a consequence of a major impact with the Earth about 65 million years ago. All but one of the following statements would be regarded as evidence for this claim.

A) The fossil record shows a mass extinction event 65 million years ago, where only 25% of the species survived.
B) At least 150 craters from past impacts have been identified, including one of the right age and size in Mexico.
C) A layer of iridium in 65- million year old sediments in the Earth's crust
D) Multiple historical accounts describe a planetary- level flood and storm that wiped out most living things.