In 1920 and after the mexican revolution war, Mexicans started to see migration to the United States as a great opportunity to improve their lifes, they came in to work in farms and ranches, and mines and factories, the majority settled in from California through Texas, cause they are the border States, soon after the mexican immigrants surpassed the european immigrants in the United States.
Mexicans moved to the American Southwest in large numbers in the 1920s to work on farms and ranches, as well in mines and factories. The correct answer is B .
