Question

between 1915 and 1917, how did the strategies the germans used at sea differ from those of the allied powers?
○ germany attacked nonmilitary ships and those of the united states, a country not involved in the war.
○ germany refused to stop their attacks despite complaints from the united states and other neutral countries.
○ germany included the use of submarines in the types of boats used to attack enemy ships.
○ germany used their submarines and other military ships for both commercial and military purposes.

Explanation:

To solve this, we analyze each option:

• Option 1: The US was neutral but not uninvolved; also, attacking non - military ships (unrestricted submarine warfare) was a key German naval strategy difference, but let's check others.
• Option 2: US complaints were about unrestricted submarine warfare, but this is about refusal to stop, not the core strategy difference.
• Option 3: The Allies mainly used surface ships, while Germany prominently used submarines (U - boats) for naval attacks. This is a key difference in naval strategies (types of vessels used for attack).
• Option 4: German ships were for military (attacking) purposes, not commercial. So this is incorrect.

Answer:

C. Germany included the use of submarines in the types of boats used to attack enemy ships.