Answer:
Option: agricultural surplus
Step-by-step explanation:
The discovery of agriculture allowed early people to stay in one place. People for the first time were settling in one place rather than engaging in the lifestyle of hunting and gathering. During this period, humans were in a transforming stage, as they were shifting their occupation from hunting-gathering to farming. It was during the Paleolithic Age when human were engage in the practice of hunting and gathering for survival. For food, they were travelling and moving from one place to another. Then came a change in human behaviour which led to agriculture. Neolithic Revolution happened when people for the first time decided to settle down in one place and grow their food.