Which statement about the dred scott case is true? a. the supreme court ruled that dred scott was entitled to equal treatment, but that people of different races could be legally separated, which upset civil rights leaders. b. in a decision that led south carolina to secede from the union, the supreme court ruled that the federal government had the power to overrule any state law that it deemed unconstitutional. c. the supreme court ruled that dred scott was not entitled to the rights of citizenship, which inflamed sectional tensions that eventually led to the outbreak of the civil war. d. in a decision that enraged pro-slavery activists, the supreme court ruled that dred scott was a free man because he had been transported into a state where slavery was illegal.

C. The Supreme Court ruled that Dred Scott was not entitled to the rights of citizenship, which inflamed sectional tensions that eventually led to the outbreak of the Civil War

C. The Supreme Court ruled that Dred Scott was not entitled to the rights of citizenship, which inflamed sectional tensions that eventually led to the outbreak of the Civil War.

Details:

Dred Scott was a slave who had been owned by a Missouri man named John Emerson.  Emerson's service in the US military caused him to live for a time in Illinois (which was a free state) and Wisconsin (which was a free territory.  Later, back in Missouri, after John Emerson died, Scott tried to purchase his freedom from Emerson's widow, who refused.  With lawyers' help, he then filed suit to gain his freedom on the grounds that he had lived in a free state and free territory.

In Dred Scott  v. Sandford (1857), commonly referred to simply as "The Dred Scott case," the Supreme Court, by a 7 to 2 margin, issued its ruling that Scott was not  entitled to his freedom just because he had lived at some times in free territory.  The Court also ruled that African Americans were not and could never be citizens of the United States, and therefore did not have the legal standing to file such a lawsuit.  The Court further stated that the Missouri Compromise of 1820 had been an overreach of federal government power -- that any states or territories were free to make their own decisions regarding slavery.

The Dred Scott decision was a controversial event which played into the tensions that by 1861 erupted into the Civil War in the United States.

according to my calculation, the answer is d.