The reasons the Supreme Court gave in the Dred Scott ruling, based on Chief Justice Taney's opinion, include:
B. Dredd Scott had no right to sue because he was not a citizen.
D. Dredd Scott had no rights to which white men had to respect.
F. Congress could not exclude slavery from the federal territories.
A, C, and E do not align with the Court's ruling, as Dred Scott was ultimately ruled not to be a free man, and his residence in a free state did not grant him rights or citizenship according to the Court's decisions.