Why do presidential candidates concentrate their campaigns on the most populous states?

a. the smaller states do not have electoral votes.
b. the most populous states have more electoral votes.
c. the smaller states are only able to vote for one candidate.
d. the most populous states split their electoral votes between candidates.

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.