The correct answer would be
A. civilization began to rely on agriculture while hunter-gatherer did not The main distinction between hunter-gatherer societies and later civilizations was that the latter developed agriculture and lives in one place.
Explanation:
Hunter-gatherers were nomads, when there was no food, they would leave the place and move to the next one. Early education were farmers who survived to produce their own foods so they could improve and not worry about driving to a distinctive place.