Mexicans wanted to flee a harsh government, which is why immigration from Mexico to the United States rose between 1900 and 1950.
Migrant laborers were brought in to work on farms and railroads.
Thus Option C is correct
<h3>
What was the Mexican Repatriation Act's principal goal?</h3>
Authorities in California and other states established schemes to illegally deport people of Mexican heritage and secured transportation arrangements with railroads, vehicles, ships, and aircraft to facilitate the mass deportation of people from the US to Mexico.
For more details about Mexican heritage reference link;
brainly.com/question/12905689
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<span>The leading economic activity in the United States during the early 1800s was agriculture, as in many other parts of the world.
The period is also associated with the start of the Industrial
Revolution in Britain, but agriculture continued to be prevalent for
decades</span>
The region aded from 1803 to 1819 to US were:
-in 1803: Louisiana
-in 1810: West Florida
-in 1818: Red River
-in 1819: East Florida
The problems: Climate change, severe increase in pollution and over harvesting/illegal trade
The answers are: 1. B 2. B 3. A