Dred Scott was an enslaved man who was taken into free states by his owners. Scott attempted to sue for his freedom, but was denied. The case set the precedent that slaves were to be in bondage in free states and territories, as well as slave states and territories.
Option C, It declared slaves to be in bondage even in free states or territories, is the right answer.
The supreme court of the United States on March 6, 1857, asserted that a Slave ( Dred Scott) who was living in the free state and territory of the United States was not allowed to his freedom and that the African -Americans were not and could never be subject of the U.S. Citizenship. Supreme Court also declared that Congress had no power to exclude slavery from the territories of U.S. This became Abolitionists (the White Northerners, who opposed Slavery) outraged from the decision made by the Supreme Court.
Adolf Hitler´s goal was to defeat and conquer the Soviet Union in order to incorporate its vast territory into his planned empire, securing "Lebensraum" or living space, for the glorious domination of the German race, the superior race according to Nazi propaganda.