The total war effort endangered civilians because
a. it did not offer legal protection to those who did not participate in the war effort.
b. it meant that every healthy adult had to volunteer for battle.
c. it required all people to bear arms, and deadly accidents were common.
d. it led enemies to attack towns, cities, and factories to damage the war effort.

The correct answer is option D. "it led enemies to attack towns, cities, and factories to damage the war effort". During World War I, most of the countries involved in the conflict performed a campaign for civilians to contribute to the war, in what is called the war effort. However, war effort represented a danger for the civilians, as the enemy countries tended to attack towns, cities, and factories to damage this movement.

the answer is )multiethnic

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.