Answer:
A. Mid Ocean Ridge.
Explanation:
The correct answer is A.
A mid-ocean ridge is formed by plate tectonics and it is a type of a seafloor mountain system.
It occurs when tectonic plates separate at the ocean basin and magma flows out of the separation, forming a crust after cooling.
They usually have a depth of roughly 2500 meters and they rise about 2 km above the deepest part of an ocean basin.
