Choose the right phrase to answer the argument.Which argument did Thurgood Marshall use to challenge the legality of segregation in Brown v. Board of Education?

Marshall argued that separating children by race was inherently unequal, even if schools received similar funding or resources. This challenged the legality of segregation itself, rather than focusing only on unequal school funding or effects on white students. The correct choice is “By their nature, separate schools could never be equal.”

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