A garden plot contains ten species that mature at different times.Some species are used for food,fuel,or medicine.Some take nutrients from the soil,and some return nutrients to the soil.Which term best describes the garden plot? 

A)  It is polyvarietal cultivation. 
B)  It is intercropping. 
C)  It is agroforestry. 
D)  It is a polyculture.

Polyculture

The cultivation of multiple species of plants and animals simultaneously in the same area, promoting biodiversity and ecological balance.

Nutrients

Chemical compounds that organisms need to live, grow, and reproduce, often obtained from the environment or food.

Soil

The upper layer of the Earth's surface composed of mineral particles, organic matter, water, and air, supporting plant life.