Final answer:
The society described in the question most likely employs the gathering-hunting adaptive strategy.
Step-by-step explanation:
Gathering-hunting societies, such as the one described in the question, rely on environmental resources for their subsistence. They gather fruits, nuts, berries, and roots, hunt wild animals, and fish in rivers and lakes. These societies are highly mobile and tend to be egalitarian in social rankings. Therefore, the adaptive strategy that this society most likely employs is gathering-hunting.