<em>Social, political, and economical Perspective</em>
Explanation:
It is easy to misinterpret an event if you don't understand its causes, its implications, or how it affected the society and politics in which it happened. Having an historical context allows for an in-depth understanding of what happened, how the causes for the event developed, what was its importance to the people present, and what consequences it had afterward, so its always important to try to understand historical context when considering an event in the past, to interpret it correctly.
According the the Homestead Act of 1862, the only two valid answers are A. Settlers had to promise to avoid contact with American Indian tribal lands and D. Settlers had to improve the land (e.g., by buying a house) to keep it.
