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.
Well what do you mean haha
Using the same verb tense throughout the sentence
I would go for the first one. If the euro decreases in value, that would mean it's cheaper to buy more of. The economy as a whole in Europe would decline with the currency they use. Things would be cheaper.