What was the impact of the Supreme Court's decision on Brown v$.$ Board of Education on segregation?

The Court's decision legitimized Black codes in the South by upholding stricter admissions standards for Black people to university.

The Court's ruling reinforced existing segregation efforts in the South by allowing separate but equal facilities.

The Court's ruling overturned the long$-$standing practice of giving preferential treatment to Black applicants who applied to university.

The Court's decision rejected the precedent set by Plessy v$.$ Ferguson and led to desegregation of schools.