B<span>) The practices of institutionalized discrimination and racism were eroded when Brown v. the Board of Education overturned Plessey v. Ferguson.</span>
B) The practices of institutionalized discrimination and racism were eroded when Brown v. the Board of Education overturned Plessy v. Ferguson.
Explanation:
In the Plessy v. Ferguson Case (1896), the Supreme Court ruled that racially segregated public facilities were legal as long as the facilities for blacks and whites were equal.
However, the Brown v. Board of Education Case (1954) proved that those facilities were unequal and that they, in fact, were a form of institutionalized discrimination that instilled a sense of inferiority to African Americans and thus they violated the 14th Amendment, which guaranteed all citizens equal protection of the laws. This case rendered invalid the decision of the Plessy v. Ferguson case and led to the end of the desegregation laws of the United States for regarding them unjust and racist.