How did the Dred Scott decision affect free African Americans?

In essence, the decision argued that as a slave Scott was not a citizen and could not sue in a federal court. ... Taney also stated that Congress had no power to exclude slavery from the territories (thus invalidating the Missouri Compromise [1820]) and that African Americans could never become U.S. citizens

false, the two are unrelated

d. it spread christianity. i just took the test and got it right.