6. What conclusion can be drawn from the Information in this graph? a. The Invention of the cotton gin resulted in the need for fewer slaves.
b. Slavery contributed to the economic success of the South.
c. Demand for cotton dropped before the start of the Civil War.
d. Cotton was relatively easy to farm and required very little labor.

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.