The main energy products currently being abstained from. the ocean floor are oil and

It is mined for minerals (salt, sand, gravel, and some manganese, copper, nickel, iron, and cobaltcan be found in the deep sea) and drilled for crude oil. The ocean plays a critical role in removing carbon from the atmosphere and providing oxygen.

http://marinebio.org/oceans/ocean-resources/

The answer is c i just finished taking the test