5. which book changed the way northerners saw the institution of slavery?

a. stephen crane's red badge of courage
b. harriet beecher stowe's uncle tom's cabin
c. frederick douglas's' autobiography: narrative of the life of frederick douglas, an american slave
d. harriet tubman's autobiography: the life and story

b. Harriet Beecher Stowe's "Uncle Tom's Cabin" changed the way Northerners saw the institution of slavery. It was a novel that depicted the harsh realities of slavery and the mistreatment of slaves, which helped to create sympathy for the abolitionist cause.

The book that changed the way northerners saw the institution of slavery is b. Harriet Beecher Stowe's Uncle Tom's Cabin.

To determine which book changed the way northerners saw the institution of slavery, we can analyze the options given and identify the one that had the most significant impact.

Option a, Stephen Crane's "Red Badge of Courage," is a novel about the American Civil War and does not directly address the institution of slavery.

Option b, Harriet Beecher Stowe's "Uncle Tom's Cabin," is an influential novel that is widely recognized for its role in raising awareness about the horrors of slavery. It depicted the harsh conditions that slaves endured and highlighted the moral issues surrounding slavery. Its impact was substantial, and it is often considered a turning point in public opinion regarding slavery.

Option c, Frederick Douglass's "Autobiography: Narrative of the Life of Frederick Douglass, an American Slave," is a powerful firsthand account of Douglass's life as a slave. While it played a crucial role in shaping public perception of slavery, it primarily resonated with readers who were already sympathetic to the abolitionist cause.

Option d, Harriet Tubman's "Autobiography: The Life and Story," is not as well-known or influential as "Uncle Tom’s Cabin" in terms of changing perceptions of slavery.

Therefore, the correct answer is b. Harriet Beecher Stowe's "Uncle Tom's Cabin."