Read this excerpt from the letter of a World War I soldier. We are in the trenches just now. In fact we seem to spend about three times as much time in as we do out. . . .

What is the most likely reason that the soldiers were spending so much more time in the trenches?

A. to protect themselves from enemy fire and poison gas
B. to create dangerous areas called no-man’s-land
C. to avoid the spread of diseases
D. to use machine guns more easily

30 pts