The correct answer is B. Early humans were unable to control their food supply.
Step-by-step explanation
The first humans that inhabited the earth were nomads, which means that they constantly moved from one place to another to supply themselves with food and resources to survive. Additionally, these humans traveled long distances in search of sources of water, food, housing, among other resources necessary for life. Over time, humans developed the cultivation of plants with which they could supply themselves with food and stay in one place, becoming sedentary communities. Therefore, the correct answer is B. Early humans were unable to control their food supply.