Answer:
It became a better country, and we have not had a huge war like that again, yet.
It's not C because it doesn't say anything about the imperial court it's not A because the ex given in the passage was a scenario nor B because she said she imagined so its D :)
The Helots were state-owned serfs of the ancient Spartans.
Tecumseh was a tribal leader who thought all Native Americans needed to get together to force US to stop its expansion. Together the Native Americans were strong enough that US would stop to avoid an armed conflict.