Answer:
Option: A. Both awakened the conscience of the nation to injustice.
Step-by-step explanation:
Both the books, A Century of Dishonor by Helen Hunt Jackson and Uncle Tom's Cabin by Harriet Beecher Stowe deals with the injustice towards the people especially, non- white in America.
Helen Hunt Jackson famously is known for her work A Century of Dishonor in 1881 and became an activist on behalf of Native Indians treatments by the United States government. By the coming of this book, it was well-received and affected White American attitudes toward Indians. Later the government appointed a commission to look into Indian Ponca people which changed the nature of white Americans toward Native Americans.
Harriet Beecher Stowe, in her book, reflects upon the issue of slavery in the South. The book was well-received by people in the North which further increased the hostility toward the South who followed slavery by declaring it as a legal practice. This book was the minor cause of the Civil War as President Abraham Lincoln said: "the little woman who wrote the book that started this great war."