Answer:
C. It enabled the United States to annex Texas.
Step-by-step explanation:
The U.S.-Mexican War resulted in the United States annexing the territory of Texas, which had previously been a part of Mexico. This annexation was a significant event in American history, as it expanded the country's territory and set the stage for further expansion in the western United States. It also contributed to the tension and conflict between the United States and Mexico, which continued to simmer for many years after the war ended.