The cretaceous-tertiary extinction, the most famous of the big five, has been attributed to what major event(s) that triggered the extinction of the dinosaurs?

Currently it is believed that his extinction was caused by either an asteroid or comet impact on Earth or by a series of such impacts, and a likely location of one of the major impacts is the Gulf of Mexico.

1.world in spatial terms2.places and regions 3.human systems4.physical systems5.geography and it's uses6.environment and society

Im pretty sure it’s is c