Magma pushes up from the mantle in the middle of the Atlantic Ocean. As a result, the Atlantic Ocean is growing by several centimeters each year. How else has this magma affected the Atlantic Ocean? A.
It has produced volcanoes in the middle of the lithospheric plates.

B.
It has produced a flat, smooth ocean floor as the continents separate.

C.
It has created a long, large mountain range below the ocean's surface.

D.
It has made the Atlantic waters much warmer than the Pacific Ocean.