The purpose of poll watchers is to

a.
make sure that only qualified people vote.
b.
kept supporters of opposing candidates from voting.
c.
allow only their party's supporters to vote.
d.
allow everyone to vote.

The telegraph, the transatlantic telegraph cable, and the telephone were important to businesses after 1850 because of a. they created a system for developing new inventions. b. they filled a need that other inventions of the day could not. c. they attracted investors and created the stock market. d. they made picture-taking a popular american pastime.