Which regions are known for having individuals with darker, thicker, and coarser hair?

The selection of Central and South America, the Mediterranean, and the Middle East is correct because these regions are characterized by a diverse genetic heritage leading to distinct hair types. In these areas, individuals often have darker pigmentation and thicker, coarser hair due to a mix of Indigenous, European, and sometimes African ancestry. This hair texture is influenced by the climatic conditions of these regions, where coarser hair can provide better protection against environmental elements.

In contrast, the other regions typically do not showcase the same prevalence of these hair characteristics. Eastern Europe and Asia, for example, may have a variety of hair types, but they are generally known for finer textures compared to those found in Central and South America or the Mediterranean. North America and Australia also reflect diverse populations but typically exhibit a wider range of hair textures influenced by various ethnic backgrounds rather than a predominant thickness or coarseness in hair. Southern Africa and Polynesia have their own distinct hair characteristics, but they do not necessarily align with the specific hair qualities mentioned in the question, which emphasizes thickness and coarseness in relation to the selected regions.