Ignore the answer i already put idk if it’s right

I think the answer is Idaho because it is the only state that touches the border of Canada in the answer choices. I also looked up which states share the border with Canada, and Idaho was one of the answers

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

what are the choices?