Answer:
B. The Missouri Compromise was illegal because it was illegal for Congress to deprive a slave owner of the property (slaves) without the due process of law.
Step-by-step explanation:
The Dred Scott case was one of the most controversial events preceding the Civil War.
The case began when Dred Scott, a slave who had been taken by his owner to a free state and then returned to Missouri. Claimed judicially that because of that action, and according to the Missouri Compromise entitled him the emancipation.
In the Supreme Court decision prevailed the opinion of Chief Justice Taney. He claimed that the U.S. Constitution didnĀ“t include the black people as citizens and therefore any of the rights held on it were possible to apply onto them. Apart from that he then ruled on the Missouri compromise and considered it unconstitutional because it exceeded the U.S. CongressĀ“s powers according to the Constitution.
I hope this answer helps you.