The Constitution. Checks and balances throughout, separation of power in article one two and three.
The answer is D
Passed on May 20, 1862, the Homestead Act accelerated the settlement of the western territory by granting adult heads of families 160 acres of surveyed public land for a minimal filing fee and 5 years of continuous residence on that land.
a.there was plenty of inexpensive land available for homesteaders.