According to the 26th Amendment to the U.S. Constitution, citizens 18 years of age or older are eligible to vote in federal elections.

The Voting Rights Act of 1965 was enacted to prohibit discrimination in voting based on race, color, or national origin. It was a landmark piece of legislation that helped to ensure equal access to voting for all citizens.

Gerrymandering, poll taxes, and literacy tests are all examples of voter suppression. Gerrymandering is the practice of drawing electoral district boundaries in a way that gives one political party an unfair advantage. Poll taxes are fees that voters must pay in order to vote. Literacy tests are tests that voters must pass in order to vote. These practices have been used historically to disenfranchise minority voters.

Suffrage is the term for the right of citizens to elect their representatives. It is a fundamental right in a democracy.

All of the options are types of elections. A general election is an election in which voters choose candidates for public office. A primary election is an election in which voters choose candidates from each political party to run in the general election. A runoff election is an election held between the top two candidates in a primary election if no candidate receives a majority of the votes. A special election is an election held to fill a vacant public office.

Voter registration is the process of registering to vote. It is typically done through a government agency, such as a county clerk's office or a state election board.

Literacy tests are no longer a requirement for voter registration in the United States. They were once used to disenfranchise minority voters, but they were outlawed by the Voting Rights Act of 1965.

Voting is the process of casting a vote. It is typically done by marking a ballot or using a voting machine.

All of the options are types of voting methods. First-past-the-post voting is a system in which the candidate with the most votes wins, even if they do not receive a majority of the votes. Ranked-choice voting is a system in which voters rank candidates in order of preference. Proportional representation is a system in which the number of seats that a party wins in an election is proportional to the number of votes that the party receives.

Vote counting is the process of counting votes. It is typically done by hand or by using a voting machine.

Gerrymandering is not a type of election fraud. It is the practice of drawing electoral district boundaries in a way that gives one political party an unfair advantage. Voter impersonation, ballot stuffing, and other forms of election fraud are illegal activities that can undermine the integrity of elections.

An election contest is the process of challenging the results of an election. It is typically done by filing a lawsuit in court.

All of the options are types of election recounts. An automatic recount is a recount that is triggered by a certain margin of victory. A mandatory recount is a recount that is required by law. A judicial recount is a recount that is ordered by a court.

Election certification is the process of certifying the results of an election. It is typically done by a government official, such as a state governor or a county clerk.

A performance audit is not a type of election audit. It is an audit that is conducted to assess the efficiency and effectiveness of an organization. Risk-limiting audits, forensic audits, and other types of election audits are conducted to ensure the accuracy and integrity of election results.