Thurgood Marshall was the first in 1967.
Since you're in a rush, the shortest answer would be that it is D., William Seward, whom decided to buy Alaska.
Answer:
I believe the answer is c, It weakened confidence that the US could win the war.
i wish i knew the answer to this. the world is unperfect as well as the people in it. you cant change anyone, but always be the change that you want to se in the world. always treat others the way you want to be treated