Question: Deer are introduced into a grassland ecosystem and their population increases considerably. If the deer population continues to grow, which is the most likely outcome for the ecosystem?

  Options: 
 A. Biodiversity would decrease, and sustainability would decrease.
 B. Biodiversity would decrease, and sustainability would increase.
 C. Biodiversity would increase, and sustainability would increase.
 D. Biodiversity would increase, and sustainability would decrease. 
Answer: A