David is interested in writing about seaweed, fish, and invertebrates for his research on oceans. in which zone are seaweed, fish, and invertebrates found in an ocean?

At the bottom of the INTERTIDAL ZONE, which is only exposed during the lowest tides, many invertebrates, fishes, and seaweed can be found. The intertidal zone on sandier shores is not as stratified as in the rocky areas.

it sounds like either a or c