B.
the US Interstate Highway System
They knew the land,and had the homefield advantage.
Workers mostly sell their labor in order to "<span>a. earn income" since those who employ them must pay them a wage, which they can use to buy food, recourses, etc. for themselves and their families. </span>
<span>Hoover's response was to keep a balanced federal budget until taxes collapsed because of the depression, making the government insolvent. Any increase in spending was incremental and not beneficial to the industries that had lost business or the people that lost jobs. His dogged reliance on balanced budgets turned a hiccup in the financial markets in 1929 into a huge national depression by 1932.</span>
The number of African-American slaves was rapidly increasing and combined with the poor white people they started to outnumber the white rich majority. If they ever decided to unite and to overthrow the institutions of power, they could make their own government where there would be no place for those who were white and rich plantation owners.
They countered this through various laws. For example, they forbid African-Americans from arming themselves even if they were free, or they forbid them from mixing up with local native population. If there would be miscegenation, the child would be a slave and live with African-Americans even though their fathers would be those same white rich people. They got the support of the poor white people because they would amnesty those who would rebel against them.