The primary effect of the Dred Scott decision, based only on the option in this list, was that "Congress could not prohibit slavery," but mostly it meant that blacks weren't considered citizens and thus could not sue for their freedom.
D is the correct answer for this
C. I really don't have an explanation for this, but I know this from a BrainPOP video. Hope I helped! ☺
So he can pursue a his passion his passion in much cheaper living style
