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.
Harry Truman, president after WWII
The Thirty Years' War was a war fought primarily in Central Europe between 1618 and 1648. One of the longest and most destructive conflicts in human history, as well as the deadliest European religious war in history, the war resulted in eight million fatalities.
Delegates from each of the Thirteen Colonies met in Philadelphia in the summer of 1776 to decide the case for liberty. The goal was to convince the States that the time had come for the United Colonies to declare their independence from Mother England.