In 1954, the Supreme Court case Brown v. Board of Education overturned Plessy v. Ferguson by ruling segregation unconstitutional.
stated that African American and white schools needed to be equal.
upheld the Separate Car Act by ruling that segregation was legal.
upheld Plessy v. Ferguson by ruling segregation constitutional.

i believe the answer is c

the emancipation proclamation was the aim of the war change to include the freeing of slaves in addition to preserving the union. the 13th amendment, which abolished slavery in the u.s. was passed on december 6th 1865.

as promised, lincoln waited to unveil the proclamation until he could do so with success from the union military advance. on september 22nd 1862, after a victory at antietam, he publicly announced a preliminary emancipation proclamation, declaring all slaves free in the rebellious states as of january 1st 1863.

c. all egyptian slaves