The ocean contains many plants and protists that can make their own food. what do these organisms get by living near the surface that they cannot get in deep water?
a. sunlight
b. shelter
c. food
d. oxygen

 By living near the surface these organizms can get A.sunlight. It's a well known fact that organizms that live in the deep water have lack of sunlight, but this doesn't affect their life in bad way though. They accustumed to be in such environment and can get food, shelter and oxygen.

Where is the rest of the question

The zone your looking for is the intertidal zone.