Following the rise of communism in Russia there was what was called the "Red Scare" in the United States which led to anti-communist activities such as the "Palmer Raids" which were carried out by Mitchell Palmer. Therefore, A) Attorney General Mitchell Palmer used the public's fear of communism to start a witch hunt for suspected communists is the best answer.
Issues like the workers felt that the employers were under paying them/ low wages, working conditions and benefits and more.
The Continental Congress commissioned George Washington as Commander in Chief of the Continental Army on June 19, 1775. Washington was selected over other candidates such as John Hancock based on his previous military experience and the hope that a leader from Virginia could help unite the colonies.
Islam spread through military conquest, trade, pilgrimage, and missionaries.
There were many factors that led to the rise of political machines in American cities in the 18th, 19th, and 20th centuries. One of the major factors that led to the rise of political machines was the rise of immigrant populations who sought to gain and increase their influence in the political realm and served as a powerful political tool for political machines. Political machines worked to enfranchise these voters through a system of patronage, and bribes and would bring them out on election days to support politicians who paid political bosses or awarded government privileges to. Positive aspects of this system were that it gave some increased level of representation of immigrant populations and worked to enfranchise these new political groups. However, these machines led to a high level of corruption and hurt the meritocracy of government institutions at the time.