[填空题]The American economic system is organized around a basically private enterprise. It’s (36) economy in which consumers determine what shall be produced by spending their money for those goods and services. Private businessmen, (37) to make their profits, produce these goods and services in (38) with other businessmen, and the profit (39) , operating under competitive pressures, largely (40) how these goods and services are produced. Thus, in the American economic system it is the demand of individual consumers, (41) with the desire of businessmen to gain more profits and the desire of individuals to (42) their incomes, that together determine what shall be produced and how (43) are used to produce it.
If, on the other hand, (44) , which in turn will lower the price and permit more consumers to buy the product. In the American economy, this mechanism is provided by a price system, a process in which

[单项选择]The American economic system is organized around a basically private-enterprise, market-oriented economy in which consumers largely determine what shall be produced by spending their money in the market place for those goods and services that they want most. Private businessmen, striving to make profits, produce these goods and services in competition with other businessmen; and the profit motive, operating under competitive pressures, largely determines how these goods and services are produced. Thus, in the American economic system it is the demand of individual consumers, coupled with the desire of business men to maximize profits and the desire of individuals to maximize their incomes, that together determine what shall be produced and how resources are used to produce it.
An important factor in a maket-oriented economy is the mechanism by which consumer demands can be expressed and responded to by producers. In the American economy, this mechanism is provided by a price sys
A. American consumers.
B. American seller-producers.
C. American economic system.
D. American price system.