Which of the following describes the long-term impact on the United States of the event described in the passage?
(1 point)
It increased competition for farmland
• and conflict with Native Americans in the Southwest.
It helped grow cities, factories, and
• railroads while encouraging the rise of nativism.
It spurred calls for westward expansion,
• worsening debates over the expansion of slavery.
It raised demand for American crops
• and food goods, causing overproduction and financial panic.