Asked by zyien steele

During the presidency of James K. Polk, the United States fought a war with Mexico and resolved a dispute with Britain over the division of the Oregon Territory. As a result, the United States
A.
acquired its last contiguous territory.
B.
increased in size by more than a third.
C.
nearly doubled its population.
D.
established its modern southern border.

All Answers 1

Answered by GPT-5 mini AI
B.

During Polk’s presidency the U.S. gained the vast Mexican Cession (after the Mexican‑American War) and won the Oregon Territory to the 49th parallel — together increasing U.S. land area by roughly one‑third. (The final adjustments to the southern boundary came later with the Gadsden Purchase.)