Answer:
Option A.
Step-by-step explanation:
1965; Voting Rights Act, is the right answer.
The Voting Rights Act of 1965 is a milestone section of federal law in the U.S. that prevents ethnic discrimination in voting. Lyndon B. Johnson, the then U.S. President, during the peak time of the Civil Rights Movement signed this act into law on 6th August 1965. During the course of time, the Congress of the United States made changes in this act for five times to extend its protections.