The correct answer is:
D. The court found that the segregation of public schools was unconstitutional because of the damaging effects of segregation itself.
In the landmark decision of Brown v. Board of Education in 1954, the Supreme Court ruled that racial segregation in public schools violated the Equal Protection Clause of the Fourteenth Amendment. The Court concluded that segregation inflicted psychological harm on minority children and was inherently unequal, thus declaring it unconstitutional.