Read the excerpt of "The March on Washington" and answer the question. Many speakers addressed the crowd. They represented different civil rights organizations, labor unions, and religions, but their messages built on each other. Everyone was focused on the same goal. Martin Luther King, Jr. was the last to speak. He delivered what would become one of the most famous speeches in history. Speaking eloquently, King referenced the country's Founding Fathers and the Bible while describing the struggles faced by African Americans. His speech was scheduled to be four minutes long, but King spoke for sixteen instead. He closed by describing his dreams for equality. King's "I Have a Dream" speech identified him as a major figure of the civil rights movement. His emotional speech has been referenced in presidential addresses numerous times, and his words have inspired generations.

After the speeches, the marchers proceeded to the White House to meet with President Kennedy. They implored him to provide equality for all Americans. The march was an important catalyst for change. Two years later, on July 2, 1964, President Lyndon Johnson signed the Civil Rights Act, which made employment discrimination and segregation illegal. He then signed the Voting Rights Act on August 6, 1965, removing some of the barriers African Americans faced when voting. It appeared that some of King's "dream" was coming true.

The March on Washington was a successful, nonviolent demonstration. It served to spur on important change, and its legacy is still felt today.

What kind of detail could be added to the article to support the author's point that the march resulted in removing barriers for African American voters?

a The author could describe the unfair laws that still existed despite the passing of new laws.
b The author could explain the history of voting and discrimination against different groups of people.
C The author could include the number of African Americans that gave their lives in the Civil War.
D The author could include information that shows an increased number of African American voters.