The sioux indian attacks on stagecoach lines.
<span>The causes of the Sand Creek massacre
were rooted in the long conflict for control of the Great Plains of
eastern Colorado. The Fort Laramie Treaty of 1851 guaranteed ownership
of the area north of the Arkansas River to the Nebraska border to the
Cheyenne and Arapahoe -that part was sighted off history.com- </span>
I’d say C
So sorry if I’m wrong!!
The answer for this question would be:
Pro tempore of the Senate
<span>A pro tempore is a “placeholder” who acts as a locum in the absence of the superior. The senator with the continuous service to the government is usually chosen by the main senate. </span>