Final answer:
C. Wild West of the United States based on people attitudes
The 'Wild West of the United States' best exemplifies a perceptual region, characterized by shared cultural attitudes rather than formal boundaries or functions.
Step-by-step explanation:
The best example of a perceptual region from the options provided is C. Wild West of the United States based on people's attitudes. Perceptual regions, also known as vernacular regions, are areas defined by people’s shared perceptions or feelings about those areas.
These regions have loosely defined boundaries that are often subjective and vary based on individuals' opinions and experiences, rather than on formal criteria. Thus, the concept of the ‘Wild West/u2019, characterized by its historic reputation for frontier life and a certain ruggedness or lawlessness, is an excellent example of a perceptual region. It reflects cultural attitudes and notions more than precise geographical boundaries.
Other types of regions, like formal regions, are defined by governmental or administrative boundaries (such as the State of Texas), and functional regions, which are defined by a function (e.g., the Mississippi drainage basin) do not exemplify perceptual regions as well as the ‘Wild West’ does.