How has the success of the Voting Rights Act of 1965 been apparent in South Carolina?

The first African American governor of South Carolina was elected to office in 2008.

The number of African American voters increased to 20 percent of all voters in the state by 1970.

The average yearly income of African American families equals that of white families across the state.
has to be one of the answers above

The number of African American voters increased to 20 percent of all voters in the state by 1970.