Question

All of the following are results of the Mexican-American War except —

President Polk was hailed as a hero in declaring and decisively winning the Mexican-American War

the U.S. gained control of Texas

the U.S. acquired territory that included California and Arizona

Hispanics who lived in the newly acquired territories received full U.S. citizenship

Answer 1

"Hispanics who lived in the newly acquired territories received full U.S. citizenship" — is the exception.

Why: The 1848 Treaty of Guadalupe Hidalgo technically offered those Mexican residents who remained the choice to become U.S. citizens, and it promised protection of property rights. In practice many lost lands, political power, and civil equality; discrimination, contested land claims, and unequal treatment meant they did not receive full, equal citizenship in reality. The other three statements reflect actual outcomes: Polk was credited with victory, and the U.S. acquired and secured territory (including California and much of present-day Arizona) and the Texas boundary was settled as part of the conflict.