Answer:
It uses the word voters, which repeats and reinforces the central idea of the essay.
Explanation:
By using the word voters, in the phrase the author reinforces the centrla idea of the essay which is inviting and promoting voting on off-year elections, which have the lowest voter turnout since people are not concerned with the positions that are elected on off-year elections, this helps encourage voters to be more involved with the situations and elections.
Flashback - a literary device often employed to recall a previous event or memory in a character's mind. This device allows for background knowledge to be expanded for events that do not take place chronologically in the story arc. Often are used in first person point of view.
Because they do not realize how valuable it is.