Read the following statement. Nonviolent civil rights protest marches had a powerful effect on the country’s history.

Which sentence from the article BEST supports the statement above?
Senate Majority Leader Mitch McConnell, a Republican from Kentucky, said Lewis was "a pioneering civil rights leader who put his life on the line to fight racism, promote equal rights, and bring our nation into greater alignment with its founding principles."
a. He was best known for leading some 600 protesters in the Bloody Sunday march across the Edmund Pettus Bridge in Selma, Alabama, in 1965.
b. Within days, King led more marches in the state, and President Lyndon Johnson soon was pressing Congress to pass the Voting Rights Act.
c. Lewis joined King and four other Civil Rights leaders in organizing the 1963 March on Washington, D. C.