Correct answer choice is :
C) The Missouri Compromise was illegal because it freed slaves in the slave states.
Explanation:
In 1834, Dred Scott, a slave, had been brought to Illinois, a free state, and then Wisconsin territory, where the Missouri Compromise of 1820 forbidden slavery. Scott lived in Wisconsin with his teacher, Dr. John Emerson, for many years before returning to Missouri, a slave state. In 1846, after Emerson died, Scott claimed his master’s widow for his liberty on the grounds that he had lived as a citizen of a free state and nation.
