Which argument helped overturn the "separate but equal" policy?

issa brain pop question

The repeal of such laws establishing racial segregation, generally known as Jim Crow laws, was a key focus of the Civil Rights Movement prior to 1954. The doctrine of “separate but equal” was eventually overturned by the Linda Brown v. Board of Education Supreme Court Case in 1954.

answer; /// i do believe that the correct answer is (d) majority vote as an approval requirement;

i disagree that there is little difference between adult female development and adult male development. sociological studies comparing female and male pathways to adulthood, revelead that there are sustancial differences between them. particularly, female and male differ from timing of marriage, when they began to live with children and the likelihood of combining wife/husband and parent roles.