Commercial agriculture consists of raising food for trade and profit, while subsistence agriculture focuses on -- a. providing the basic needs of the farmer's family b. providing the basic needs of the neighboring communities c. creating more arable land for future use d. obtaining subsidies from governments and corporations

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.

new communications technology has affected the way social movements are organized because nowadays, social movements rely on social networks and the media to get different people with a similar way of thinking in contact, and thus, get them to mobilize for a greater cause.

individuals only participate in collective action when they feel identified with it. is in this aspect that social media becomes relevant, because it guarantees communication among all individuals and organizes the social actions that are going to be carried out, i.e., the social movements.

in addition, being covered by the media is important to validate the message and make it relevant in the social agenda, as well as to reach more people who can share interests, appealing to public sympathy for their cause.

in conclusion, it is by social networks and social media that social movement is given birth; by connecting different individuals with similar ideas and organizing them to mobilize for a greater cause.