What would a poor farmer in a very poor country most likely do to prevent leaching?
A.
The farmer would buy expensive fertilizer to keep the soil full of nutrients.
B.
The farmer would use expensive chemicals that provide the topsoil with nutrients needed for crops.
C.
The farmer would plant the same crop over and over again instead of rotating crops.
D.
The farmer would plant cover crops, leave them to die over the winter, and let them serve as natural fertilizers.

Please select the best answer from the choices provided
A
B
C
D