Answer:
Option C, A meteorite
Step-by-step explanation:
It is believed that a celestial object has hit the earth some 60 million years ago which has caused the extinction of dinosaurs. This celestial object is believed to be either an asteroid or a meteorite. As per the latest research by scientist it is believed that the dinosaurs were killed by the great tsunami caused by the collision of asteroid with planet earth.
Hence, option C is correct