Which term describes the social reform effort to end slavery in the United States?

• A. Kansas-Nebraska Act
• B. Abolition Movement
• C. Dred Scott Decision
• D. 13th Amendment

Answer: (B)

The abolition movement refers to the broad push by reformers who argued that slavery was morally wrong and should be ended across the United States. It grew in the early 1800s through religious groups, abolitionist newspapers, speeches, and petitions, and it helped shape political action and later constitutional change. The other options describe specific events or legal changes rather than the social reform effort itself: the Kansas-Nebraska Act was a law about allowing territories to decide on slavery by popular vote, not a movement to end it; the Dred Scott Decision was a Supreme Court ruling that reinforced slavery in new territories, not an abolition effort; and the 13th Amendment, while it formally ends slavery, is a constitutional change resulting from the abolition movement, not the movement itself.