After the Fall of Fort Sumter, What Common Hope Did

After the fall of Fort Sumter, what common hope did partisans on both sides hold?

A) The inevitable long war would be a contest of bravery.
B) The fighting would bring new immigrants to the United States as workers.
C) The war would last a long time, thus helping the United States get out of its economic depression.
D) The war would be quick, ending with one sudden bold stroke, like the capture of the enemy's capital.
E) The war would provoke French or British intervention.