It can be inferred from the passage that the "researchers" would agree with which of the following statements about the use of fertilizer? A. If farmers near the Mississippi River decreased the amount of fertilizer that they used, the severity of the dead zones could be diminished. B. If farmers near the Mississippi River continue their dependence upon fertilizers, foraminifera population will eventually decline. C. If farmers near the Mississippi River stopped using fertilizers altogether, there would no longer be dead zones.