Which of the following can be used to investigate the reason the assassination of Archduke Franz Ferdinand sparked World War I?(1 point) Responses the nationality of Archduke Franz Ferdinand’s assassin the nationality of Archduke Franz Ferdinand’s assassin knowledge of the Schlieffen Plan knowledge of the Schlieffen Plan the role that East African soldiers played in the war the role that East African soldiers played in the war the collapse of the alliance system

knowledge of the Schlieffen Plan