Answer:
d. 160 acres were inadequate for productive farming on the rain-scarce Great Plains.
Explanation:
The Homestead Act of 1862 was signed by President Abraham Lincoln on May 20, 1862, which provides lands to anyone desiring it for an almost-free of cost. The legislation would become a crucial aspect for Westward expansion and also provides people from all walks of life the chance to acquire land.
Despite the huge surge in homesteaders, one negative aspect of the Act was that in that arid land of the Great Plains, a mere 160 acres was not much to farm with. This would become a pertaining issue for the settlers hoping to farm and maintain their survival.
Thus, the correct answer is option d.