Winds often blow loose topsoil away, causing erosion. Planting grass or trees on the soil can prevent this erosion. Which of the following best describes how this solution works?
A.
The leaves of grasses and trees anchor the soil to the ground and prevent it from blowing away.

B.
Grasses and trees create new soil that replaces the soil lost to the wind.

C.
The dead remains of grasses and trees cement the soil to the ground and prevent the wind from blowing it away.

D.
The roots of grasses and trees anchor the soil and prevent it from blowing away.