The answer that is not true is A: "Scott could only sue in state courts."
Whether Dred Scott, as a slave, had any legal right to sue in court was a matter that applied whether talking about state or federal courts. When Scott's suit was rejected by a state of Missouri court, Scott and his supporters managed to bring the case into a federal court, and it went all the way to the Supreme Court. Though the Supreme Court at the time ruled that Scott had no right to bring the suit because he was a slave and not a citizen (point D above), the case gave Chief Justice Roger Taney opportunity to make further statements regarding the slavery issue, including points B and C in your list above.
Hello!
The Western Schism lasted from 1378 to 1417 and was a split from within the Roman Catholic Church. Basically what happened was three popes thought that they were the "true" pope so eventually they split apart. The schism was ended by the Council of Constance on 1414 and lasted 4 years fro the debate to finally end on 1418.
I hope it helps!
