In paragraph 3, the writer compares the Rocky Mountain states with the Atlantic seaboard (lines 27–31) to provide evidence for the claim that communities are not defined by geography

make the argument that communities can be large or small

emphasize that geography is an important factor in economic development

underscore the great need for the rural United States to redefine itself

familiarize the reader with the vast differences on the North American continent

It's A I got it right. Your Welcome