Why did Southerners like the Dred Scott decision?

Because they believed the Congress had no right to prohibit slavery in the southern territories.

it should be c, women were allowed to vote in all states because federal law supersedes state law.

"states can make their own laws, as long as they don't contradict what the federal law states. the states do not have the authority to pass a law that negates a federal law." -google

answer; i believe the correct answer is (117);