Correct Answer: B
Explanation: The sinking of the Lusitania in nineteen-fifteen, along with unrestricted submarine warfare and the Zimmermann Telegram, turned American public opinion against Germany and helped push the U.S. toward entering World War I in nineteen-seventeen.
Correct Answer: B
Explanation: The sinking of the Lusitania in nineteen-fifteen, along with unrestricted submarine warfare and the Zimmermann Telegram, turned American public opinion against Germany and helped push the U.S. toward entering World War I in nineteen-seventeen.