Which of the following called upon states to desegregate public schools “with all deliberate speed”?

Brown II, the Supreme Court’s 1955 decision following Brown v. Board of Education, instructed school districts to desegregate “with all deliberate speed.” Brown v. Board ruled that segregated public schools were unconstitutional, but Brown II addressed how that ruling should be carried out. The Southern Manifesto opposed desegregation, while Plessy v. Ferguson upheld segregation.

AI-written and checked against the verified answer.