Which state was acquired as a result of the Mexican War?

• A. California
• B. Texas
• C. Oregon
• D. Florida

Answer: (A)

This question is about how the Mexican War reshaped U.S. territory. After the war, the United States gained a large block of land through the Treaty of Guadalupe Hidalgo in 1848, known as the Mexican Cession. That territory included what would become California, along with several other western states, and California later became a state in 1850. The other places listed weren’t acquired as a result of this war: Florida was obtained from Spain earlier, Oregon came through a separate agreement with Britain, and Texas joined the United States after gaining independence from Mexico and then being annexed, not as a direct outcome of the Mexican War. So California is the state acquired as a result of that war.