What may happen if the oceanic plates stop moving?

A. Erosion would change the color of Earth's surface.

B. There would be no new island formations.

C. Volcanoes and earthquakes will destroy life on Earth.

D. Chemical weathering would not create unique landscapes.

If all plate motion stopped, Earth would be a very different place. The agent responsible for most mountains as well as volcanoes is plate tectonics, so much of the activity that pushes up new mountain ranges and creates new land from volcanic explosions would be no more. The volcanoes of the Pacific Ring of Fire, in South and North America, Japan, the Philippines, and New Zealand, for example, would shut off, and the steady southeastward migration of volcanic activity along the Hawaiian Islands would stop. Volcanism would just continue on the big island. There would also be far fewer earthquakes, since most are due to motion of the plates.

Im sure it is c, because the movement of those plates create volcanoes in the oceans and islands too.