It would be the term "d. market economy" that refers to an economic system in which people earn wages and buy the goods and services they choose, since here the consumer is ultimately in charge of production.
A "Formal Amendment" is one that actually adds to or changes the US Constitution. It is ratified by the states and becomes law.
<span>An "informal amendment"is a change to the meaning or interpretation of the Constitution of the United States. There is no real informal way to change the Constitution, and it's not an actual change to the wording of the Constitution; rather, it's the way we perceive the Constitution that changes. </span>
<span>The one that comes to mind is the equal rights amendment (1972) - which prohibits the inequality of men and women. Opponents say that the amendment is no longer needed, as the issues are already law</span>
"<span>D. to build a motor car that ordinary people could afford" was Ford's primary objective. He knew he could do this if he harnessed the technology of the Industrial Revolution, such as factories. </span>