Answer :
Answer:
B) A different view in society about the rights of minority groups.
Explanation:
The interpretation of the equal protection clause has changed drastically between the 19th and 20th century. During the 19th century, it was ruled that the doctrine of "separate but equal" did not violate the equal protection clause of the 14th amendment. This was ruled in the Plessy vs. Ferguson Supreme Court case.
However, in the 20th century, the Supreme Court ruled that this doctrine of "separate but equal" violated the 14th amendment of the constitution. This was done in the Supreme Court case Brown vs. Board of Education. This helped to end segregation in American public schools.