A blog, this is assumed as both the University and Museum websites are considered to be managed by informed, qualified individuals whereas on a blog the credentials of the writer are unknown.
Answer:
A. "The world... will never forget what they did here."
Explanation:
The emotional appeal of this passage is that "they" (probably the Confederates) committed an atrocity so great that the entire world will remember its scope. None of the other passages really do anything to appeal to the audience's emotions for lack of phrases that can do so.
Maybe it's because not everyone can cope with each other after such a long time. Maybe not everyone has great social skills after living together for awhile.
