Here's a problem to solve: Bison are grazing animals. They travel across a prairie, eating grass. If there were too many bison in an area, there would probably be

Among the 4 following options, which is the correct answer?

- A: fewer predators of bison.
 
- B: many other large grazing animals.
 
- C: tall shrubs and many trees.
 
- D: less grass and more bare soil.
 