Which of the following organisms represents a list of nekton animals. a.) fish, lobster, clam b.)algae, seaweed, shrimp c.) fish, squid, ray d.) crab, lobster, clam

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.