Which was a cause of world war 1
A The unification of separte german states into one nation
B Austria-Hungarys imperialist ambitions to dominate the balkans
C the invasion of belgium by german troops
D russias desire to stay out of military alliances

2. How did expectations at the beginning of the great war differ from reality?
A Fewer countries were going to be involved than people expected
B Fighting was only going to happen on land while people expected naval battles
C Technology was not going to have an impact as people expected it would
D The war was going to last longer then people expected.

Thanks in advance