Answer:
A. a market economy
Explanation:
A market economy uses supply and demand to control prices. For example, if the supply is low and demand is high, then the prices will be high and vice versa. This causes competition between companies and offers consumers different choices to buy from. Additionally, this type of economy has low government control giving citizens more freedom.
Early initiatives by the United States under Truman, Eisenhower, and Kennedy received broad support. Only two members of the United States Congress voted against granting Johnson broad authority to wage the war in Vietnam, and most Americans supported this measure as well.
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Bartering is trading, in today's society we buy and sell using currenxy
It is best known as a Cold War foreign policy of the United States and its allies to prevent the spread of communism. As a component of the Cold War, this policy was a response to a series of moves by the Soviet Union to increase communist influence in Eastern Europe, China, Korea, Africa, Vietnam, and Latin America.
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