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Which even helped convince the united states to enter world war 1 on the side of the allies?

A.assassination of archduke frank ferdinand
B.overthrow of the russian tsar
C.ellection of woodrow wilson
D.sinking of the lusitania

User OfusJK
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2 Answers

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A.Assassination of archduke frank Ferdinand

User Andrew Zhilin
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the answer is d. the sinking of the Lusitania

User Phil Lord
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