Which term best applies to a farm where alternating rows of hemp and maple trees have been planted? 

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

This is an example of agroforestry, which involves the intentional planting of trees and crops in the same area in a mutually beneficial way. The alternating rows of hemp and maple trees provide both economic and ecological benefits. Intercropping typically involves growing two or more crops in close proximity for mutual benefits, but in this case, trees are also involved. Monoculture refers to the practice of growing only one type of crop in a given area, which is not the case here. Polyvarietal cultivation refers to the cultivation of multiple varieties of the same crop and is not applicable to this scenario.