The correct answer is A. Brown v. Board of Education, Montgomery Bus Boycott, CORE's Freedom Rides.
Step-by-step explanation
The Brown v. Topeka Board of Education of 1954 was a famous US Supreme Court ruling that established state laws establishing separate schools as an obstacle to equal educational opportunities for African American and white students.
Second, The Montgomery Bus Boycott was a series of protests that began in 1955. These were known for their political and social motivation since those who did this boycott belonged to the Afro-descendant community of Montgomery, Alabama who opposed the policy of racial segregation in the public transport system.
Third, Los Travelers of Freedom was a group of activists for civil rights in the United States who, since 1961, began a movement against interstate buses in the southern United States that segregated the African-American population even when the Supreme Court already prohibited this practice of segregation.
According to the above, the correct answer is A. The correct answer is A. Brown v. Board of Education, Montgomery Bus Boycott, CORE's Freedom Rides.