Which statement best describes Germany’s submarine campaign during World War I?

A. Germany made no use of submarines.
B. Germany used submarines in land and sea attacks.
C. German submarines made unrestricted attacks on ships.
D. German submarines prevented all transatlantic shipping.

Respuesta :

The answer to this question is letter C. German submarines made unrestricted attacks on ships. These unrestricted warfares were introduced in World War I in the early 1915. This happened when Germany declared the area around the British Isles a war zone. 

C. German submarines made unrestricted attacks on ships.