Considering the passage above the completed one is this:
After the passage of the Homestead Act, settlers flooded to the Great Plains, where lumber was scarce. Barbed wire enables the settlers to fence in their lands.
As a result, the movement of Native Americans and cattle drivers was severely restricted, and the era of open range came to an end.
Hence, in this case, the correct answers are:
Learn more here: brainly.com/question/5218751
There is a detailed examination of his case at this link
http://www.washingtonhistoryonline.org/leschi/
Ive not read all of it myself but would expect the answer to your question to be there.
Unfortunately the "quashing" of his sentence came far too late to save him from being hung
Ku Klux Klan was a known racist organization that wanted to frighten the black population - the correct answer is"to restrict and frighten blacks from being involved in Southern governments"
The Black Codes were codes that restricted the rights of African Americans to work - so it's false that it allowed black people the right to vote without paying a poll tax. (this was the 24th Amendment)