Answer:
Sectionalism
Explanation:
The era of good feelings refers to the period when most Americans actually have a sense of unity and purpose to work together with all citizens to bring the country forward.
But, Slavery issues create a sectionalism that divided the northern and southern states . The northern states wanted to abolished slavery and the southern states wanted to keep slavery.
In the end, this end the sense of unity between the people which eventually led to the civil war.
hw # 4 is B because it say that women became the backbone of the American Manufacturing might, and help sustain the American budget because of the Taxes this people give. More people that has a job means bigger tax for the war effort. ... It changed America, world war II did, and its affects created the United States that we see today. in https://www.quora.com/How-did-World-War-II-affect-America