Which of the Following Was a Consequence of the Montgomery

Which of the following was a consequence of the Montgomery Bus Boycott?

A) It officially ended segregation in public schools in the South.
B) It showed that well-coordinated, nonviolent black activism could cause major changes.
C) It was the last major accomplishment of Martin Luther King Jr. before his assassination.
D) It proved that Eisenhower was willing to directly intervene to help achieve civil rights victories.
E) It promoted the cause of black nationalism and led it to spread across the country.