How Might a Water Pump Be Used in the Treatment

How might a water pump be used in the treatment of a small pond affected by eutrophication? What should be done to the pond before the pump is used?

A) The water could be sprayed into the air, but first the aquatic life should be treated for diseases.
B) The water could be circulated to help dissolve the algal bloom, but first the source of eutrophication should be identified and stopped.
C) The water could be sprayed into the air, but first the source of eutrophication should be identified and stopped.
D) The water could be circulated to help dissolve the algal bloom, but first the aquatic life should be treated for diseases.