Which prominent civil rights leader would have disagreed most with washington's approach to solving the problem of racial inequality in the south?

The correct answer is W.E.B. Dubois.

The prominent civil rights leader that would have disagreed most with Washington’s approach to solving the problem of racial inequality in the South is W.E.B. Dubois.

William Edward Burghardt Dubois (1868-1963) was an activist, journalist, and professor that supported the rights of African Americans. With other activists, he founded the National Association for the Advancement of Colored People or N.A.A.C.P. He was the first African American to obtain a Ph. D. at Harvard University and he strongly criticized Booker T. Washington for not demanding equality for Black people.  

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

i believe the correct answer is option b. most eastern european nations joined nato.

though i could be wrong, option d. the eastern european nations were granted complete independence, would be another choice.

hope this ! : )