Which development best illustrates why world war 1 is classified as a total war

What made WWI so different was the long term impact of the Industrial Revolution, with its social and political changes. This war was the first global war of the industrialized age.

Explanation:

The war was fought with all heart of patriotism and belief of social hierarchy, these believes were later destroy by the war, and no one seems to understand nowadays. Known as the people's war, it was fueled by the idea and sense of national identity, by the middle of the war countries involved called it "Total war".

The organization of entire societies for war in a social, economic and spiritual manner. Almost everyone believed that victory for their country was worth the cost and casualties of war.

i believe it's that they cared for people. hope this ! : )