The Treaty of Guadalupe-Hidalgo resulted in which of the following?

The Treaty of Guadalupe-Hidalgo, signed in 1848, marked the end of the Mexican-American War and had significant consequences for both Mexico and the United States. One of the most critical outcomes of the treaty was the substantial loss of land for Mexico. Under the terms of the treaty, Mexico ceded approximately half of its territory to the United States, which included present-day California, Nevada, Utah, Arizona, and parts of Colorado and New Mexico.

This territorial acquisition dramatically expanded U.S. boundaries and set the stage for further westward expansion, as well as contributing to the ongoing debates regarding the extension of slavery into these new territories. The treaty exemplified the theme of manifest destiny, the belief that the expansion of the U.S. across the American continent was both justified and inevitable. Thus, the correct answer highlights the significant impact that this treaty had on the geographical and political landscape of North America.