Answer:
Eli Whitney was an American inventor best known for inventing the cotton gin. This was one of the key inventions of the Industrial Revolution and shaped the economy of the Antebellum South.
Tariffs are taxes implemented on those products that are imported into the country. A tariff on cars can reduce the demand for imported cars because it makes the car to be more expensive in price, thus, consequently making potential get discouraged if ever they're on a tight budget.
To attract investments by foreign countries
It was primarily the "b. formation of the Vietcong in Vietnam" that led the Truman administration to expand the containment doctrine to include Asia, since this was seen as a threat to democratic principles in the west as well.
