Question

how did the dred scott decision affect free african americans?
they were granted citizenship, but enslaved americans were not
both enslaved and free african americans were declared citizens.
just like enslaved african americans, free african americans were denied citizenship.

Explanation:

The Dred Scott decision (1857) ruled that African Americans, whether enslaved or free, were not considered U.S. citizens and had no standing to sue in federal court. So free African Americans were denied citizenship, matching the third option. The first option is incorrect as enslaved and free were both denied citizenship. The second option is incorrect as neither were granted citizenship.

Answer:

Just like enslaved African Americans, free African Americans were denied citizenship.