Answer:
the ans might be option d ..
The doctrine related to public education which was overturned by the Supreme Court decision in Brown v. Board of Education was the policy of B) separate but equal. This doctrine was overturned by referencing the equal protection clause of the Constitution which argued that equal protection of the law was afforded to all citizens regardless of race.
In total they ate 22 pieces and had 13 left
One problem for the social security system is that there's more and more older people and fewer young people, so if they massively retire, there won't be enough workers to keep the social security system working because not enough taxes will be paid. A possible solution can be an increase the the obligatory retirement age. This would mean that people would work longer before retiring so they would use less social security money.