Answer: it would be the renewal of unrestricted submarine warfare from Germany. Otherwise C
Explanation: The Germans continue to become more and more ferocious with their U-boat attacks, their hopes were to cripple the United Kingdom by silently attacking supply ships. Once the Lusitania was sunk the world became aware of the tragedies of unrestricted, moral ignored warfare
Comparing, the answer is either comparing or contrasting.
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A belief to live in harmony with nature
