Which of the following statements best describes how popular sovereignty applies to federalism?
a.the people elect local government representatives, who in turn choose national representatives.
b.the people elect representatives, who can only do what the people give them authority to do.
c.the people elect local government representatives, who gather to make federal laws.
d.the people elect representatives, who govern according to the people’s wishes.

The best option in terms of how popular sovereignty applies to federalism would be that "D.The people elect representatives, who govern according to the people’s wishes," since this allows the people to ultimately be in control. 

The correct answer is B. In the Dred Scott Case, Supreme Court Chief Justice Taney favored states rights.

Explanation:

Taney was a Jacksonian Democrat when he became chief justice. He believed in the individual rights of each state but was a defender of the Union.

While in the Supreme Court, he adopted a conservative Jackson-inspired stance. He believed that freedom was extremely important and thought that concentrated power could be dangerous and a threat to individual freedoms. He was against the federal government trying to regulate or control matters that he said threatened the personal freedom of the people.

Taney supported slavery and was against giving rights to blacks. In the case of Dred Scott v. Sandford, a slave named Dred Scott appealed to the Supreme Court in the hope of gaining his freedom on the basis that his master had taken him to free territory where slavery was illegal. The court, led by Roger Taney, ruled that blacks were not and would not be US citizens under the constitution, so the plaintiff (Scott) had no legal basis for filing a court case. In his famous case for the case, Taney wrote that he believed that blacks "had no rights to which white men should respect; and that black men were justly and legally reduced to being slaves to their advantage".