The result of the boycott organized by Dr. King was that

Questions 17 to 20 are based on the following monologue about American Blacks. You now have 20 seconds to read Questions 17 to 20.
    Although blacks were making gains in civil rights and in economic opportunities in the middle years of this century, many felt that their progress was far too slow. Among these was the Reverend Dr. Martin Luther King, a follower of the nonviolent principles of Mahat-ma Gandhi.
    In 1955 the southern custom is segregating blacks at the back of public vehicles triggered a widespread protest. Under the leadership of Dr. King, a boycott of all city buses was organized in Montgomery, Alabama. Old and young blacks walked for miles, refusing to ride a bus. As the boycott continued, the bus company suffered serious financial lose, and so did local merchants, whose black customers had stooped traveling to their stores.
    Finally the United States Supreme Court settled the issue by ruling that such segregation violates the constitution of the United States. As a result, the bus company ended its practice of having blacks sit only at the back of a bus. It also began to hire some blacks as driver.
    After this experience, King and other leaders used non-violent methods in various anti-segregation efforts in the South. White sympathizers joined blacks in sit-ins in restaurants and other segregated facilities. There were also protest marches (the most impressive of these was a civil rights march in Washington, D. C. , in August, 1963, in which hundreds of thousands of blacks and whites participated. People came from far and near to take part in this as well as in other such demonstrations.
    These protests called to the attention of Americans the unfairness of treating blacks differently because of their race. They helped to bring about further laws abolishing various aspects of racial segregation.
    In 1964 Martin Luther King was greatly honored by being awarded the Nobel peace prize for his contribution to the cause of human rights. However, on April 4, 1968, his career suddenly ended. On that day the whole country was shocked by the news of his murder by a sniper. Although King had always preached and practiced nonviolence, he himself met a violent end. Furthermore, his death set off a wave of rioting and arson in Washington, D. C. , and several other cities.