Which of These Activities, Occurring in Marine Environments, Would Be

Which of these activities, occurring in marine environments, would be considered an example of habitat degradation?

A) Dynamiting a coral reef
B) Releasing industrial chemicals into a bay
C) Removing catch limits so all fish of a given species can be caught
D) Introducing a highly predatory fish into a coastal habitat
E) Dredging and filling to build a canal through a coastal wetland