C. the invention of the printing press and the improvements in literacy <span />
I believe your answer would have to be C. Elton Mayo
Out of those D since one of the biggest powers was now dead the german war effort stalled
The Geneva Conventions extensively defined the basic rights of wartime prisoners (civilians and military personnel), established protections for the wounded and sick, and established protections for the civilians in and around a war-zone. Explanation:
