Please help me!!! Soldiers had a genuine fear of dying on the battlefield. What did they do for the first time ever in case they did died in battle?

Which of the following describes an effect of world war ll on the united states economy a. automobile companies produced a record number of cars b. many factories had to expand to produce military equipment c. the airplane industry suffered as the allies began using airplanes in combat d.cities with shipyards declined because so many ships had been sent overseas.