Answer:
The answer is "Formal Culture region"
Explanation:
A Formal Culture region refers to an area inhabited by people who have cultural traits in common, such as language, religion, or livelihood systems. It's a relatively homogenous area in regards to one or more cultural traits. When identifying a formal culture region, the cultural borders must be located. Since cultures mix and overlap, the boundaries are not commonly sharp , so there are cultural border zones, instead of lines.
