What is the PRIMARY significance of the Brown v Board of Education of Topeka Supreme Court decision of 1954?

A) It sparked years of nonviolent civil rights demonstrations in the South.
B) It ruled that segregation in public schools violated the Fourteenth Amendment.
C) It launched the career of Thurgood Marshall, who became a Supreme Court justice.
D) It resulted in a federal court order to desegregate Little Rock, Arkansas’ Central High School.