What Did Most Europeans Believe About the Great War

What did most Europeans believe about the Great War?

A) It would be much like the American Civil War in length.
B) It would be an exciting, emotional release from the otherwise dull and boring existence of mass society.
C) It would last for years creating a rousing state of perpetual heroics as proclaimed by Nietzsche in his writings on the "superman."
D) It would ultimately bring about the unification of Europe in one centralized and highly militarized government.
E) It would result in a new balance of power throughout all of Western Civilization.