The correct option is A.
There are two basic types of agricultural practice, these are subsistence and commercial farming. Subsistence agriculture is the type of agriculture in which the farmer cultivate crops that are meant for his sustenance and that of his family only, without any intention of selling his agricultural yields. Commercial agriculture on the other hand is a type of agriculture in which the farmer cultivate different types of crops with the sole intention of selling them in order to make profits. Examples of crops that are cultivated in this case are cocoa, coffee, rubber, etc. These types of crops usually serve as raw materials for food industry.
