The answer is D. i just took the quiz
The correct option is C
<span>C. Serbian nationalism
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The heir to the Austria-Hungary throne and his wife Sophie were shot dead by a Serbian nationalist in Sarajevo,Bosnia. The assassination is believed by historian to be the immediate cause of ww1. The Austrian-Hungarian government saw this as a direct attack on their country and believed that the Serbian authorities had helped the Bosnian terrorists.
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Explanation:
Britain attacking the Western United States
