I think it is B. the Enlightenment, but I might be wrong.
I am assuming this is a true or false statement.
And therefore your answer is True.
Answer:the Zimmerman telegram and unrestricted submarine warfare
Explanation:Germany tried to contact Mexico via Telegraph to try and persuade them to attack the US so that they would be preoccupied and not join the war. The sinking of the Lusitania was the unrestricted submarine warfare