They have also observed the growth of plantlike organisms in the bay. which
is the most likely explanation for the results?

a. the apple orchard releases toxic chemicals into the water of the
bay.
b. the nitrogen from the fertilizer makes it impossible for plants to
grow.
c. the plantlike organisms generate too much oxygen, which kills the
fish
d. the nitrogen from the fertilizer made the plants grow too quickly,
which hurt the fish.