The German government decided to engage in unrestricted submarine warfare for which of the following reasons?

A) The German government wanted to lure America into the war.
B) German spies had incorrectly advised the German government that the United States was mobilizing for war.
C) President Wilson had ordered armed American merchant ships to fire on sight at German ships.
D) By preventing Allied supply shipments to Great Britain, the German government believed it could win the war before American mobilization.

Unrestricted Submarine Warfare

A type of naval warfare in which submarines attack merchant ships without warning, as practiced by Germany in both World Wars.

Allied Supply Shipments

The transportation and delivery of military and humanitarian supplies by the Allied nations to their forces and occupied territories during times of conflict, particularly noted in World Wars I and II.

American Mobilization

the process wherein the United States prepares and organizes its military and civilian resources for war or national defense, notably during World War II.