The Wetlands of the Florida Everglades Are More Efficient in the Removal

The wetlands of the Florida Everglades are more efficient in the removal of organic pollutants than treatment plants because:

A) microbial conversions fix the pollutants into valuable biomass
B) the alligators consume most of the predators/consumers
C) the soil is porous and filters wastes rapidly
D) of microbial conversions and the physical filtration by soil
E) the vast Everglades physically dilutes the pollutants