Answer:
A. A perceptual region does not have any formal agreed upon boundaries. A formal region does have defining boundaries.
Explanation:
According to Geographers, the world is divided into three main different regions and it includes the following: Formal, Functional, and Perceptual regions.
The formal region is a term that describes an area that has its explicit boundaries, including widely accepted language and political process and structure
On the other hand, a Perceptual region is a term that describes an area in terms of how people or individuals see the area.
