All of the following statements are true of eutrophication EXCEPT:

a.
Eutrophication is the process by which a body of water becomes too rich in nutrients.

c.
This process depletes the oxygen in the water, eventually killing all of its living organisms.

b.
After eutrophication takes place, the body of water will eventually dry up.

d.
Eutrophication is very rare and can only happen in areas of high pollution.