The effect of fertilizing a fish pond with compost manure on phytoplankton population and fish yield is such that?

A. Phytoplankton population decreases as fish yield drecreases
B. Phytoplankton population decreases while fish yield increases
C. Phytoplankton population increases while fish yield drecreases
D. Phytoplankton population increases as a fish yield increases

Correct Answer: Option B

B. Phytoplankton population decreases while fish yield increases