The Germans Gained an Immense Military Advantage in the First

The Germans gained an immense military advantage in the first months of 1918 because

A) they had discovered how to use the tank and poison gas effectively.
B) the Austrian army was able to switch from the Italian front to the western front.
C) the Bolsheviks took Russia out of the war allowing German troops to move to the western front.
D) they had seized the two key strategic points of Verdun and Ypres.
E) their brilliant generals Hindenburg and Ludendorff has taken effective control of the German government.