Read the thesis from an argumentative essay about civil rights in Mississippi. Advocates for voting rights made important contributions to the fight for civil rights in Mississippi.

Which evidence supports this thesis?

After Martin Luther King Jr. marched in support of voting rights, President Lyndon Johnson worked to pass the Voting Rights Act.
The Fifteenth Amendment to the US Constitution said that “the right to vote shall not be denied” on the basis of race.
Prior to the passage of the Voting Rights Act, African Americans in Mississippi were prevented from voting by intimidation.
With the support of Thurgood Marshall and the NAACP, James Meredith was eventually admitted to the University of Mississippi.