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

Dred scott was a slave who fought in the civil war for all slaves to be free but he was still a slave so he helped free slaves

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.

did you check the study guide?