Answer:
C. Farm or herd, mostly at the subsistence level
Explanation:
In African the dominant source of income is farming and rearing of animals. Moreover, most of our farming are not fully mechanize or commercialize. Our farming are mostly at the subsistence level due to various factors like lack of support from government, lack of technical-know-how etc.
Most individuals engage in farming at a subsistence level and sells parts of the produce to carter for their other needs.