Though china outlawed opium in 1836, the british continued the sale through smugglers. three years later, what followed?

a. the sale of hong kong
b. the opium war
c. peace treaties
d. an increase in chinese migrants fleeing a drug addicted society.

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.