the conflict between the sioux nation and the united states was primarily driven by differing

Styles of farming
Claims to land
Forms of gov
Family structures

C?

Claims to land

I'm, not a real teacher so don't count on my word but I think its B

B,

The United States unrightfully claimed the Sioux land and that drove the "conflict". Be careful with some textbooks, they can be white washed.

Yes, the conflict between the Sioux Nation and the United States was primarily driven by differing claims to land. The Sioux Nation, a Native American tribe, had long inhabited the Great Plains region of North America, which was rich in resources and land. However, as westward expansion led to the arrival of European settlers, conflicts arose over competing claims and demands for land ownership. The United States government, driven by a desire for territorial expansion and the acquisition of valuable resources, sought to dispossess Native American tribes of their traditional lands, including those of the Sioux Nation. Disputes over land ownership rights eventually led to armed conflicts such as the Sioux Wars, most notably the Battle of Little Bighorn.

Nope.