Question

On December 30, 1853, the United States signed a treaty with Mexico to purchase around 30,000 square miles of land in present day southern Arizona and New Mexico. This purchase helped in completing the Southern Pacific Railroad that connected the southern region to the Pacific coast. What additional impact did this purchase have?

The northern region witnessed rapid industrialization and connectivity.

Intercontinental trade in the southern region flourished after completion of the railroad.

The border dispute between the United Sates and Mexico was resolved.

The migration of people from the southern region to the Pacific coast almost stopped.

Answer 1

The border dispute between the United States and Mexico was resolved.

Explanation: The Gadsden Purchase (1853) settled remaining boundary issues from the Mexican–American War by defining the U.S.–Mexico border in that region and secured a strip of land needed for a southern transcontinental railroad. The other options are not direct consequences of this purchase.