Voting Rights Legislation of the 1960s

In the context of the Civil Rights Movement during the 1960s, several key pieces of legislation were enacted as a result of grassroots activism and national agitation against racial discrimination. One of the most significant outcomes was the Civil Rights Act of 1964, which aimed to end segregation in public places and prohibited employment discrimination on the basis of race, color, religion, sex, or national origin.

However, one specific piece of legislation is often attributed to the increase in voter registration and the federal oversight of elections to combat systemic disenfranchisement of African Americans, particularly in the South. Which of the following acts aimed primarily at addressing these issues of voting rights?