What does the majority opinion in Brown v. Board of Education suggest about the struggle to end racial segregation in the United States?
A. Racial integration took effect as an immediate result of one Supreme Court ruling.
B. Constitutional law prevented the legal establishment of segregation in the nation.
C. The judiciary consistently blocked integration based on a standard of "separate but equal."
D. Desegregation was the result of a series of court cases built on legal precedence.