The economy of the United States is run on a free enterprise system (market economy, capitalism, in which

O C. Businesses, resources, and technology are worker-owned and operated.

O B. The government retains strict controls over businesses, resources, and technology that are sold or

traded for profit.

O A. Goods and services are sold and traded at the highest profit margin possible

O D. The government exerts little control over businesses, resources, and technology operated for profit

by private individuals.

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d. stage 4

explanation:

the existence of some kind of demographic transition is widely accepted in the social sciences because of the well-established historical correlation linking dropping fertility to social and economic development.[1] scholars debate whether industrialization and higher incomes lead to lower population, or whether lower populations lead to industrialization and higher incomes. scholars also debate to what extent various proposed and sometimes inter-related factors such as higher per capita income,lower mortality, old-age security, and rise of demand for human capital are involved.[2]