The theory of Catastrophism is supported by which of the following events?

A. The gradual deposition of sediments many kilometers thick on the
floors of seas and oceans

B. The formation of the Grand Canyon by the Colorado River over
millions of years

C. The sudden demise of the dinosaurs, and various other groups, by
the impact of a large extraterrestrial body with Earth

D. The gradual uplift of the Himalayas by the collision of the
Australian crustal plate with the Eurasian crustal plate