Why were the civil rights act of 1964 and the voting rights act of 1965 important?

The Voting Rights Act of 1965, signed into law by President Lyndon B. Johnson, aimed to overcome legal barriers at the state and local levels that prevented African Americans from exercising their right to vote as guaranteed under the 15th Amendment to the U.S. Constitution.

The answer should be d.

The townshend duties were repealed, except for the tax on textiles, tea, or glass?