Hey There!!~
Your best answer choice is D). Waves. Well, Why is it important? Because, The abiotic factors is a non-living parts of the enivorment that they can have living organisms which it have "water","sunlight", "oxygen", "soil" and tempture. And, That's why it's important because the water also helps the organisms to keep the ocean and maintain it purpose. But, It can also can affect the ocean as well. Because, Just saying if you were going into a sunny day and you what dive into the pool. But, The water dosen' t seem to be right. Because, The organisms left the ocean. Because the much the heat goes into the ocean it doesn't adapt to the ocean anymore. Well, I'm
not great at explanation stuff....
But, Hope That You!!~