Which of the following best describes the basis of Dred Scott’s legal case?

Dred Scott argued that he should be free because he had lived with his enslaver in free territory, including areas covered by the Missouri Compromise. That agreement prohibited slavery in much of the Louisiana Territory north of a set boundary. Choice A best describes the legal basis of his case, though the Missouri Compromise did not simply say that anyone who moved to a free state automatically became free.

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