Because Mexico as well as the lost territories (including California or Texas) is a resource-rich country, with several minerals and pasture land.
The correct option is this: TROOPS WERE BASICALLY TRAPPED IN THEIR TRENCHES, PREVENTING PROGRESS TOWARD SEIZING ENEMY TERRITORY.
A trench refers to a long and deep ditch, big enough to accommodate humans. Trenches were used by soldiers during the World War 1. Soldiers faced a lot of difficulties living in these trenches, and it become a disadvantage to German and the other allied power, because the trenches hindered their progress towards seizing their enemies' territories.<span />
C would be the correct answer considering most accurate out of all technology and growth that was produced there
