What do you know about the Civil War? List any terms, people or events relating to the Union on the left, and any that relate to the Confederacy on the Right. I NEED HELP. IF U ANSWER THIS WRONG I'M BLOCKING YOU.

What two different approaches did the knights of labor and the american federation of labor take in building a union organization? a) the knights of labor accepted only unskilled workers; the american federation of labor accepted only skilled workers. b) the knights of labor accepted skilled and unskilled workers; the american federation of labor accepted only skilled workers.c) the knights of labor refused to accept african american or chinese workers; the american federation of labor accepted all workers.d) the knights of labor accepted workers from a single industry; the american federation of labor accepted workers from several industries.