What was the most significant consequence for Mexico resulting from its defeat in the Mexican-American War?

It lost approximately half of its territory.

It was forced to adopt an American-style constitution.

It had to pay massive war reparations for decades.

It was required to close all of its ports to European trade.

The conflict between the United States and Mexico in the 1840s was primarily driven by what American goal?

The need to stop foreign alliances

The goal of securing trade routes

The signing of the Gadsden Purchase

The election of President James K. Polk