The alternative to voting a straight ticket is to vote a split ticket.
Option: b
Explanation:
“Straight-ticket voting” is when voters give all their votes to representative of one political party which is the just reverse of “Split-ticket voting” where voters vote for multiple parties in an election. Therefore it is viewed as an alternative to straight-ticket voting. For straight-ticket voters use to have colored ballots with respective party's representative name while split-ticket had different colored ballots which was complicated. Hence voters use to pick-up one party and vote for everyone from the same. Later straight-ticket voting practice decreased among United States voters after 1970.