How was the declaration of independence historically used as evidence in the antislavery movement? a. it argued that the nation's leaders violated the slaves' rights the same way george iii violated the colonists' rights. b. it argued that citizens living under an unjust government were free to declare themselves independent. c. it stated that anyone who could provide a reason could declare him- or herself independent of slavery. d. it suggested that the united states was a nation founded on human rights. extra points