B. Why was Archduke Ferdinand important to Austria-Hungary? C. How did the assassination lead to war?

B. Archduke Ferdinand was important to Austria-Hungary as he was the heir to the Austro-Hungarian throne. His assassination in 1914 in Sarajevo triggered a chain of events that eventually led to the outbreak of World War I.C. The assassination of Archduke Ferdinand led to war primarily due to a complex web of political alliances and longstanding tensions among European powers. Austria-Hungary, feeling threatened by Serbian nationalism, issued an ultimatum to Serbia. When Serbia's response did not fully satisfy Austria-Hungary, they declared war. The alliance system then came into play, with various countries joining the conflict on either side. This domino effect ultimately escalated into a full-scale global conflict, known as World War I.