Which of the following factors would cause a geographic area to be cal

Which of the following factors would cause a geographic area to be called a frontier area?

a. Arbitrary distinction recognizing the Great Plains, Intermountain areas, and Alaska
b. Geographically located in the West, specifically the Great Plains states
c. High death rate from use of guns (homicide or suicide)
d. Population of fewer than six persons per square mile

ESSAYBID ANSWER

ANS: D
Areas are classified as rural for populations with fewer than 45 persons per square mile and as frontier for geographic areas with fewer than six people per square mile. Many counties of the Great Plains, Intermountain West, and Alaska are designated frontier. Not all mountain areas are rural (the Appalachian mountain area is not), and geographic location alone does not make an area rural.