The picture below shoes a mid-ocean ridge.

How did the moving tectonic plates form this mid-ocean ridge?
A.
The plates moved toward each other, allowing the pressure from magma to form many small volcanoes along the crack that erupted and spread across the ocean floor.

B.
The plates moved toward each other, allowing the pressure of the plates to push mountain ranges upward along the crack, raising the ocean floor.

C.
The plates moved away from each other, allowing magma to flow upward and outward from the rift, filling gaps and spreading the ocean floor.

D.
The plates moved away from each other, allowing the existing ocean floor to fall into the crack, shrinking this area of the ocean floor.

C. The plates moved away from each other, allowing magma to flow upward and outward from the rift, filling gaps and spreading the ocean floor.