Answer: "A. Biological augmentation".
Explanation:Biological augmentation is the expansion of archaea or bacterial societies required to accelerate the rate of degradation of a contaminant. Organisms that begin from polluted territories may as of now have the capacity to separate waste, however maybe wastefully and gradually.
Bioaugmentation more often than not requires examining the indigenous assortments present in the area to decide whether biostimulation is conceivable. On the off chance that the indigenous assortment don't have the metabolic ability to play out the remediation procedure, exogenous assortments with such complex pathways are presented.