During the 1960s and 1970s, the Supreme Court took which of the following stances on school segregation? A) Asserted that de jure segregation was necessary to preserve the American way of life. B) Focused on efforts to eradicate de facto segregation only in the South. C) Attacked de facto segregation stemming from racially imbalanced neighborhoods. D) Opposed all efforts to eradicate de jure segregation in the North and in the South.