Which economic system relies on the interaction of buyers and sellers?
a.
social
b.
market
c.
traditional
d.
command

The correct answer is B.

Market economies rely on the free interactions of economic agents (households, firms and public sector entities) in the product and factor markets, as the most efficient manner of determining the main economic outcomes: prices and amounts produced and consumed. Efficiency of the market mechanisms would maximize social welfare, in opposition to alternative mechanisms that, for example, rely on goveremnt interventionism and distort the functioning of markets.

i belive the classic sword and a shield would do

answer: a tolerated diverse population

explanation: the city of baghdad formed to vast semi- circles on the right and left banks of the tigris twelve miles in a diameter.