Biomass pyramid explains about the amount of biomass or living tissue present at each trophic level.
Energy pyramids explain about the amount of energy been transferred or available from one trophic level to the other. Hence, the option (a) is incorrect.
Pyramid of numbers tells about the relative number of organisms present at each trophic level. Hence, the option (b) is incorrect.
Biogeochemical cycle refers to the movement of nutrients in the biological, geological and chemical components of the biosphere. Hence, the option (d) is incorrect.
Hence, the correct answer is option (c) biomass pyramid.