The main point of the excerpt is that readers should be aware of the damage that the war has done to a generation of men who were impacted by it, and read the book with this idea in mind.
The epigraph wants to make sure that readers who approach this book do it with the same purpose as the one with which the author wrote it. He does not want the readers to think of this book as an accusation, a confession or an adventure.
It influenced other country's to do the same
Answer is A
The best form of government is democracy, but it depends on the people to work
Families were divided and eventually spread across the country is what I think the answer is