The Homestead Act was based on Manifest Destiny's philosophical concept.
This is because Manifest Destiny is a philosophical concept that deals with the idea and belief of spreading out by the Americans to cover and dominate the whole of North America through democracy and capitalism.
This idea and belief align with the Homestead Act, which facilitated the western migration of Americans to the United States.
The Homestead Act gave any male Americans considered an adult the opportunity to settle on 160 acres of land.
Hence, in this case, it is concluded that the correct answer is option A. "Manifest Destiny."
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