Question

The violent act in Bosnia that triggered World War I was

Answer 1

The violent act in Bosnia that triggered World War I was the assassination of Franz Ferdinand, the heir to the Austro-Hungarian throne and his wife in Sarajevo on June 28, 1914.  The assassin was Gavrilo Princip, a member of a Serbian nationalist group, called Black Hand. The correct answer among the options given above is letter "B."

Answer 2

Your answer is B. The assassination of Archduke Francis Ferdinand.

Hope this helps.
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