I believe the answer is: Affiliation
Affiliation refers to the need to be accepted/become a valued member fo a certain social group.
This needs derived from primary instinct to survive (since primates have higher likelihood of maintaining survival from predators if they're staying in large groups)
The answer you’re looking for is B
. market place where buyers and sellers exchange goods and services ... But, this is just one kind of currency. In fact ... Select the items that describe voluntary exchanges. ... When people buy something, they value it than it costs them. ... liability legal obligation to repay a debt
Because Caesar thought something needed to change.