In a grassland ecosystem, if the pollution of eagles suddenly decreased, what will most likely be the effect on the rest of the ecosystem.
 
  A. The ecosystem will become overpopulated with snakes.
  
  B. There will be a decrease in the population of snakes in the ecosystem.
  
  C. The nutrition of the soil in the ecosystem will decrease.
  
  D. More type of plants will begin growing in the ecosystem.