The Last Major Dinosaurs Were Wiped Out as a Consequence

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