Final answer:
In an election where none of the candidates secure the majority of the votes, a runoff election must occur, which is the correct answer to the question. This process ensures that a candidate wins with a majority support.
Step-by-step explanation:
When an election occurs in which there were multiple candidates running, therefore none secure the majority of the vote, a runoff election must occur. The correct answer is a) Runoff election.
During a general election that doesn't follow a primary or caucus, if no candidate receives more than 50 percent plus one of the total votes, a runoff between the top candidates is necessary. This ensures that the winning candidate will have the support of a majority of voters. While plurality elections allow a candidate to win with the most votes regardless of whether it's a majority, majority elections require a candidate to secure more than 50% of the votes. If this does not happen, a runoff election takes place to ensure one of the contenders receives a majority support.
Some states, such as Georgia, specifically require this process for statewide offices. The method can help to promote a fairer and more representative outcome by ensuring a candidate secures wide support before taking office.