C is the correct answer I believe
Answer:
Harriet Beecher Stowe believed that slavery ought to be abolished.
Explanation:
Stowe was the author of the novel <em>Uncle Tom's Cabin, </em>which was a major turning point for the abolitionist movement. Just by the fact that she wrote a book concerning that slavery was a sin and the evils about it, one can infer that she believed slavery should be abolished.