Name one state that borders Mexico.

Arizona is correct because it shares a border with Mexico, specifically along the southwest region of the United States. This border spans approximately 373 miles and is one of the four U.S. states that directly adjoin Mexico. It features several entry points and is significant for trade and travel between the two countries.

The other states mentioned—Oregon, Nevada, and Washington—do not share a border with Mexico. Oregon is located in the Pacific Northwest, while Nevada is situated to the east of California and does not extend to the southern border of the U.S. Washington, like Oregon, is also in the Northwest and borders Canada to the north, rather than Mexico to the south. Understanding the geographical layout can help solidify knowledge of U.S. borders and neighboring countries.