This list describes the main causes of increasing violence between American
Indians and the U. S. government in the mid-1800s. Which phrase best
completes the list?

had the same question but with different answer, and I can confirm the answer is b

Explanation:

supplies had to travel a long distance across water on ships that were often attacked, so they did not reach europe

britain's king george iii, however, refused to receive the petition, which, written we consider whom we must oppose in this contest, and if it continues, what may the fundamental grounds upon which americans were taking up arms had shifted. that king george refused to so much as receive the