The biotic components are the components, which are composed of the living things. the abiotic components are the non living chemical components of the water.
So, in this case, the oxygen concentration of water, rocks on the ocean floors, and the temperature of the ocean are the abiotic factors.
The detritus, which is present on the floor of the ocean is made up of dead remains of the living organism is the biotic component.
The correct answer is option 'Detritus on the ocean floor'.
