The Most Important Consequence of the First Year of World

Multiple Choice

The most important consequence of the first year of World War I was

A) a deadly stalemate on the western front as a result of the failure of German war plans.
B) Italy's decision to switch sides to the German-Austrian alliance.
C) the collapse of German armies on the Russian front.
D) Serbia's rapid advance into Austria-Hungary.
E) the Ottoman Empire's decision to join the Triple Entente.