If banks' requirement is low, the banks have
money to
lend, and this boosts economic activity.

True
Is the answer I think

During the paleolithic, hominins grouped together in small societies such as bands, and subsisted by gathering  plants  and fishing, hunting or scavenging wild  animals. the paleolithic is characterized by the use of knapped stone tools, although at the time humans also used  wood  and bone tools.