Answer:
OPTION { C }
Step-by-step explanation:
They made it easier to kill and wound more soldiers than ever before.
The introduction of new technologies such as machine guns, poison gas, tanks, and airplanes during WWI had a devastating impact on the soldiers and civilians involved in the war. These technologies made it easier to kill and wound more soldiers than ever before and caused immense destruction and suffering. While some of these technologies may have contributed to certain strategic advantages for one side or the other, they did not ultimately determine the outcome of the war.