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

Because it was considered one of the bloodiest wars in history and after world war 2 came along world war 1 still bloodier.

the american revolution led to the creation of a democratic republic,is the correct answer;

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: