After the passage of the Civil Rights Act, civil rights activists wanted to overturn the Fifteenth Amendment. overturn the Twenty-Fourth Amendment. elect John F. Kennedy. improve voting rights in the South.

After the passage of the Civil Rights Act of 1964, civil rights activists focused on ensuring that the legal gains translated into practical improvements for African Americans, particularly in the Southern United States where discriminatory practices like voter suppression were rampant. **Correct Answer:** - **Improve voting rights in the South.** **Explanation:** The Civil Rights Act of 1964 was a landmark law that prohibited discrimination based on race, color, religion, sex, or national origin. However, while it addressed many forms of segregation and discrimination, it did not fully secure voting rights for African Americans, especially in the South. To address this gap, activists pushed for the Voting Rights Act of 1965, which aimed to eliminate barriers like literacy tests and poll taxes that were used to disenfranchise Black voters. This focus on improving voting rights was crucial in ensuring that the protections promised by the Civil Rights Act were effectively implemented. The other options are inconsistent with the goals of civil rights activists: - **Overturn the Fifteenth Amendment:** The Fifteenth Amendment prohibits denying the right to vote based on race, which civil rights activists supported. - **Overturn the Twenty-Fourth Amendment:** This amendment abolished poll taxes in federal elections, further supporting voting rights rather than opposing them. - **Elect John F. Kennedy:** While JFK was a significant political figure, his election predated the Civil Rights Act, and activists were more focused on legislative measures to secure civil rights.