Answer:
The quote is about how when we are young, we are told to savour our youth because it's fleeting. When you're young though, it can feel like forever and it's harder to see how fleeting youth truly is. I believe this was included at the start of the novel because the book later follows Connor, who is only a boy.
The Civil War was fought in 1861, so the answer would be D: 1800.
Free will, fate and imperialism is the themes in war of the worlds:)
I think you can tell the answer is odd because the multipliers are odd.