Why was the anti-slavery movement in America successful?

Because people with functioning moral compasses knew that the enslavement of other humans is wrong and they worked and sacrificed to end it.

Because people with functioning moral compasses knew that the enslavement of other humans is wrong and they worked and sacrificed to end it.

Because people with functioning moral compasses knew that the enslavement of other humans is wrong and they worked and sacrificed to end it.

Because people with functioning moral compasses knew that the enslavement of other humans is wrong and they worked and sacrificed to end it.