Which best expresses how missouri's application for statehood threatened the future of slaves?

it could have given more power to the states in favor of slavery.
people in the missouri territory had no mercy for runaway slaves.
the governor of the territory believed that slaves should never be free.
the plantation owners in the missouri territory wanted to outlaw hiring freed slaves.

"neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the united states, or any place subject to their jurisdiction." - the thirteenth amendment to the united states constitution, 1865 which statement describes the effect that the thirteenth amendment had on american society? a) male freedmen were given the right to vote. b) slavery was made illegal in the united states. c) ex-slaves were given united states citizenship. d) southern states were no longer allowed to use convicts as labor.