The correct answer to how the publication of Uncle Tom's Cabin affected the United States is:
B. Increased the intensity of sectional conflict
1. Uncle Tom's Cabin, written by Harriet Beecher Stowe, was a novel that depicted the harsh realities of slavery in the Southern United States.
2. The publication of this book intensified the existing sectional conflict between the North and the South over the issue of slavery.
3. The novel sparked discussions about the morality of slavery and increased tensions between the Northern abolitionists and the Southern slave owners.
4. This heightened sectional conflict eventually contributed to the outbreak of the American Civil War, as the divide between the North and South deepened over the issue of slavery.
Therefore, the publication of Uncle Tom's Cabin had a significant impact by increasing the intensity of sectional conflict in the United States.
