Which of the Following Is an Example of Bioremediation

Multiple Choice

Which of the following is an example of bioremediation?

A) bulldozing the land around an abandoned strip mine to combat erosion
B) scraping a river bottom with a tool to remove contaminated sediments
C) reconfiguring a river channel to increase the flow of water down a river
D) using microorganisms to eat oil in marine waters after a tanker oil spill
E) selectively logging younger trees to leave older trees for woodpecker nests