Answer:
C
Step-by-step explanation:
WW1 was a war of attrition, both sides hunkered down and the fighting was slow. Especially since WW1 began Trench warfare, most deaths came from artillery and other means of killing the other side without dying yourself. Since between trenches was "No mans land" a very high percentage you would be instantly shot down walking through, thus making full out over the wall offenses harder