What did Judge Taney say about Dred Scott and how did it relate to the lawsuit? Help me please I’m struggling

In March of 1857, the United States Supreme Court, led by Chief Justice Roger B. Taney, declared that all blacks -- slaves as well as free -- were not and could never become citizens of the United States. The court also declared the 1820 Missouri Compromise unconstitutional, thus permiting slavery in all of the country's territories.

The case before the court was that of Dred Scott v. Sanford. Dred Scott, a slave who had lived in the free state of Illinois and the free territory of Wisconsin before moving back to the slave state of Missouri, had appealed to the Supreme Court in hopes of being granted his freedom.

Taney -- a staunch supporter of slavery and intent on protecting southerners from northern aggression -- wrote in the Court's majority opinion that, because Scott was black, he was not a citizen and therefore had no right to sue. The framers of the Constitution, he wrote, believed that blacks "had no rights which the white man was bound to respect; and that the negro might justly and lawfully be reduced to slavery for his benefit. He was bought and sold and treated as an ordinary article of merchandise and traffic, whenever profit could be made by it."

Referring to the language in the Declaration of Independence that includes the phrase, "all men are created equal," Taney reasoned that "it is too clear for dispute, that the enslaved African race were not intended to be included, and formed no part of the people who framed and adopted this declaration. . . ."

Abolitionists were incensed. Although disappointed, Frederick Douglass, found a bright side to the decision and announced, "my hopes were never brighter than now." For Douglass, the decision would bring slavery to the attention of the nation and was a step toward slavery's ultimate destruction.

Ithink it's c selection but i don't really know.