The correct answer is:
A) Brown v. Board of Education
Explanation:
1. Brown v. Board of Education was Marshall's first major legal victory.
2. This landmark case, decided in 1954 by the U.S. Supreme Court, ruled that segregation in public schools was unconstitutional, overturning the "separate but equal" doctrine established in Plessy v. Ferguson.
3. Thurgood Marshall, who later became the first African American Supreme Court Justice, was the lead attorney for the plaintiffs in this case, representing the NAACP Legal Defense Fund.
4. The decision in Brown v. Board of Education was a significant milestone in the civil rights movement and set the stage for desegregation efforts in other areas of American society.
