Answer:
Option: A. the opportunity for free land
Step-by-step explanation:
The Southwest region consists of states like Arizona, Texas, Utah, Colorado, New Mexico, and Mexico. The Southwest became part of the United States in 1848 after the Treaty of Guadalupe Hidalgo. In the 1820s, Anglo Americans from the east began settling in Texas, which was part of Mexico. These settlers became disappointed with the Mexican government and formed an independent land after winning the war. The United States, with Texas and after the war between The Mexican-American War, receive more lands. The primary motivation of American pioneers to travel to the Southwest was the free land. Vast land in the Southwest encouraged settlers to move to a new region to begin farming and ranches. The land was available at a low price for settlers to settle.