The answer is <span>C. Trench warfare .
they were most of the time in trenches.</span>
The government had to spend money for supplies for the military so economic changes for civilians were very real
1. 137 cars (I live in a busy neighbourhood)
2. You get around quicker
<span>Since 1848, the Rio Grande has marked the boundary between Mexico and the United States. It affected domestic policy in that the river had been a cause for a discord between the US and Mexico and special policies were implemented for the area.</span>
