Defining Political Boundaries Practice Test

A textbook excerpt states: “Geometric boundaries are defined using mathematical lines; they are often easiest to map but may split communities because they do not reflect cultural patterns.” Which option is the best example of a geometric boundary?

In a unit on defining political boundaries, a textbook excerpt explains that geometric boundaries are political borders drawn using straight lines or arcs that follow latitude/longitude or other surveyed lines rather than physical features. The excerpt notes that many geometric boundaries were established for administrative convenience and may cut across cultural regions. Which option best identifies the boundary type described?​