<span>William Jackson.........</span>
The best answer choice would be A.
Answer is: <span>b.a series of federal land grants.
</span><span>Congress passed a law allowing people to claim public land and convert it to private property through homesteading.
</span>The Great Plains <span>is the broad expanse of flat land</span><span> that lies west of the </span>Mississippi River tallgrass prairie<span> states and east of the </span>Rocky Mountains<span> in the United States and Canada. </span>
