The World War II involvement of the United States meant that lot of men had to go to war. This left a very big gap in the labor force market. Because of the lack of labor force, the people that were not sent to fight, including lot of African Americans, found themselves in a nice position when it came to job opportunities. The empty spaces in the labor market had to be filled in order for the economy to run, so pretty much everyone managed to get a job with ease. This opened a lot of doors for the African Americans against which there was lot of discrimination until then, so they used the opportunity, managed to get nicer jobs and to prosper in life because of it.
C - the older brother is cross because he's stayed at home and served him father while his younger brother has gone out and spent all his inheritance money. He wants his father to give him a party because he's been loyal and he thinks he deserves it more than the younger brother.
Mainly because it toughened-up the Fugitive Slave Act, allowing official slave-catchers to hunt down runaways.
This recruited many new Abolitionists, and caused Harriet Beecher Stowe to write 'Uncle Tom's Cabin'.
Immigrants showed resistance to the Americanization movement by developing Catholic schools in cities.
At the time, Catholicism was not widely accepted in the United States and the main Anglo religion was Protestant.