The correct answer is "A".
The Domino Theory was developed in 1950 in the US administration. It proposed the idea that if one country in a region was governed by a left-wing power which shared communist beliefs, neighbor countries will follow suit. This led the United States to get involved in numerous armed conflicts around the world, such as the Korean War, in order to prevent the spread of Communism.
Answer:
Factory system, system of manufacturing that began in the 18th century and is based on the concentration of industry into specialized—and often large—establishments. The system arose in the course of the Industrial Revolution
Explanation:
Answer: The law allowed no more immigration from European nations.
Explanation: The Immigration and Naturalization Act of 1965 abolished a prior quota system dependent on national origin and built up another movement strategy dependent on rejoining migrant families and pulling in skilled labor to the United States.
Throughout the following four decades, the policies put into impact in 1965 would enormously change the demographic makeup of the American populace, as settlers entering the United States under the new enactment came progressively from nations like Asia, Africa and Latin America, rather than Europe.
This passage is about the speech of President Jackson in Congress, where he defended the process of remorse of the Indians.
The use of the word "progessive" refers to the continuation of a process begun earlier, where the Indians were massacred and expelled from their territories to the detriment of the white man's civilization. The former president used that term as a way to slow down an attitude that today would be understood as barbarism, but one that is part of US history.