Answer:
Option A: "A Horseman in the Sky" emphasizes the killer while "The Death of Reynolds" emphasizes the person killed.
Explanation:
In "A Horseman in the Sky" the story focuses on the soldier who ends up killing a man. It emphasizes the killer, his situation, his fears.
Meanwhile, in "The Death of Reynolds" it emphasizes the person killed, as it's title suggests.
I believe a person who manages money is called a treasurer...
C. Ethics. Ethos is described as being an appeal to ethics, dealing with the character and credibility of the speaker/person.