World War I began when Austria-Hungary declared war on Serbia in 1914. Which of the following directly caused other countries like Germany, Britain, France, and Russia to join the war?

Respuesta :

Answer:

Explanation:

. The real causes of World War I included politics, secret alliances, imperialism, and nationalistic pride. However, there was one single event, the assassination of Archduke Ferdinand of Austria, which started a chain of events leading to wars

Answer:

c

Explanation: