So to answer this question you need to know what abiotic factors are. Abiotic factors are non-living chemical and physical parts of an environment. To answer your question the abiotic factors of the ocean affect the organisms that live there since without parts of an environment, organisms wouldn't have any place to live.
Something with higher electric potential than the ground or a defined null or neutral point. Electrons flow from the positive point in a circuit. See also negative, null, and potential.
I believe the answer to your question is C, correct me if i'm wrong :)