How does this painting show the united states expanding west after the civil war? check all of the boxes that apply. indigenous people are welcoming the settlers. new technologies, such as telegraph wires, are installed alongside railroads. settlers are using railroads to travel west.

The Homestead Act, which Abraham Lincoln signed into law during the Civil War, promoted westward migration and settlement by offering 160-acre parcels of land west of the Mississippi for cheap in exchange for a promise to improve the area.
Both native tribes and the Confederacy attempted to claim or recapture territory west of the Mississippi while Federal resources were concentrated on conducting the war farther east.
In response, the federal government implemented policies (such as the Homestead Act and the transcontinental railroad) and launched military operations with the aim of promoting settlement, securing Union control over the trans-Mississippi West, and further marginalizing the existence of tribes indigenous to the region.

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