Which military action led to the start of World War I?
o Germany's invasion of France
Russia's invasion of Germany
Austria-Hungary's invasion of Serbia
Italy's invasion of Bosnia

Respuesta :

Answer:

The assassination of Franz Ferdinand, who was also the Archduke of Austria-Hungary by Gavrilo Princip acted as the catalyst for the starting of the World war I.

Looking at your choices the answer is C but it was due to the asassanation of Franz Fernidad which led to Austria - Hungarys invasion of Serbia