Answer:
Under the terms of the treaty negotiated by Trist, Mexico ceded to the United States Upper California and New Mexico. This was known as the Mexican Cession and included present-day Arizona and New Mexico and parts of Utah, Nevada, and Colorado (see Article V of the treaty).
Possibly allies and they way they interacted with other countries, by trade etc. and strengthening their economy for war.
Answer : B - Austria - Hungary and Spain
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Elitist because they were the one that had more power