They wouldn't really gain anything from killing, as a matter of fact it would be counter productive since people would gather against them because of it. They want total control over people and they want to break people physically and spiritually. Through torture they would eventually get the person to break and this would be good because they wouldn't be against the state anymore.
The answer is B, established a free trade zone with Mexico
For Native Americans, land was not privately owned. Land was for common use of the tribe. Disputes over land were not between members of the same tribe. Often the land and territory disputes were between rival tribes in an certain area or region. Things like food collection and raising children were whole tribe activities, not solely up to the parents. Life was more communal.
