The Answer is A. Hope it helps
The end of the Civil War resulted in a significant rise in political power for the Radical Republicans.
The Zodiac originated the name himself in a series of taunting letters and cards
Mills vs. Board of Education was a lawsuit filed against the District of Columbia in the early 70s. The lawsuit was on the behalf of 7 disabled children who were denied access to a public school education because it was thought that their needs were too great for them to be able to be educated in a public school setting (it was also said by the Board that it would be too expensive to educate them).