Final answer:
A submarine canyon is the ocean floor feature that forms in the continental shelf and continental slope, formed by erosion from rivers and turbidity currents.
c is correct
Step-by-step explanation:
The ocean floor feature that forms in the continental shelf and continental slope is the submarine canyon. A submarine canyon is a steep-sided valley cut into the sea floor of the continental slope, sometimes extending well onto the continental shelf. They are formed by the same processes that form canyons on land, including erosion from rivers and turbidity currents carrying sediments.
These canyons can often be extensions of river valleys that extend into the continental shelf and slope. Unlike rift valleys or mid-ocean ridges which form along plate boundaries, and deep ocean trenches that are associated with subduction zones, submarine canyons are features found on the continental margin.