5. The word boycott in this passage means A. buy a great deal of
B. advertise
C. refuse to buy, sell, or use

a

To abstain from or act together in abstaining from using, buying, dealing with, or participating in as an expression of protest or disfavor or as a means of coercion: boycott a business; boycott merchants; boycott buses; boycott an election. The act or an instance of boycotting. ... boy′cott′er n.

the indians crossed artificial boundaries, setting the stage for conflict