Use easybib! It’s a great tools that helps.
I think the answer should be A. I'm hoping.
<span>many ethnic groups wanted their own nation-states</span>
The answer should be B! It's actually kinda funny. Northerners thought that the Confederate army would be easily defeated and that the Civil War was going to begin and end at the Battle of Bull Run. So, lots of spectators watched, but they were quickly proven wrong, as the war lasted for years.