I believe the answer is: B.The Brown v. Board of Education ruling
In that ruling, the supreme court ruled that separating schools based on skin colour is deemed as unconstitutional because it specifically violates the 14th amendment, which states that minorities who had been freed from slavery in the past is guaranteed with citizenship rights and equal protection/treatment under the law.
<span>Claudius is what it says on spark notes it says he is the villain.</span>
Guessing; all the above. don't guarantee it is correct, maybe Chek the index of your book. ...