Final answer:
The economic system in the United States is a capitalist or market economy.
Step-by-step explanation:
The economic system in the United States is a capitalist or market economy (B).
In a market economy, individuals and firms own resources and make decisions on what to produce. Private property rights are emphasized, and decision making is decentralized and coordinated through markets. The government's role is minimal, usually limited to enforcing private property rights.
This economic system allows for competition and individual freedom in economic activities, and it is characterized by profit motive and entrepreneurship.