Question 9 • CA-World History, Culture, and Geography A
The Lusitania was a British passenger ship sunk by a German submarine in 1915, killing many civilians, including Americans. The deaths turned public opinion in several countries against Germany and its use of unrestricted submarine warfare. Choice A describes this unintended effect; the sinking did not lead to unrestricted bombing or an immediate U.S. diplomatic mission to end the war.
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