The encomienda system . a. forced Native Americans to work on Spanish-owned land and pay tribute. b. allowed Native Americans to either work for the Spanish or pay higher taxes. c. paid Native Americans for the work they did. d. allowed Native Americans to join the Spanish army.

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.