contestada

Archduke Francis Ferdinand’s assassination triggered World War I when _____. Serbia’s alliance with Germany led it to declare war on France Italy’s alliance with France forced it to declare war on Germany Russia refused to come to the aid of Serbia Serbia refused to comply with Austria-Hungary’s ultimatum

Respuesta :

~Hello there!

Your question: Archduke Francis Ferdinand’s assassination triggered World War I when _____.

Your answer: 
Archduke Francis Ferdinand’s assassination triggered World War I when Serbia refused to comply with Austria- Hungary's ultimatum.

Any questions?

Happy Studying!
Photon
Let's do it ! 

The answer is the last one : Serbia refused to comply with Austria- Hungary's ultimatum.

Hope this helps !

Photon