In Marine Ecosystems the Highest Concentrations of Persistent Organic Pollutants

In marine ecosystems the highest concentrations of persistent organic pollutants (POPs) will be found

A) in the bottom sediments where the remains of dead organisms eventually accumulate.
B) in the bodies of tertiary and quaternary consumers which represent the transfer of the energy and nutrients from the lower trophic levels.
C) in the water since POPs are recycled by decomposers just like any other nutrient.
D) in marine producers because they form the base of marine food webs and are the most numerous type of organisms.