D.) It encouraged thousands northerners and southerners to move into those states, which frequently caused violence.
The Kansas-Nebraska Act of 1854 declared that the legality of slavery would be determined by popular sovereignty in this territory. Therefore, a lot of abolitionists from the North and pro-slavery individuals from the South would migrate to that area to turn the tide. Ultimately, the act was a total failure, and led to “Bleeding Kansas,” which speaks for itself on the violence.
