Is would be the core region
"Three Gorges" is the one among the following choices given in the question that is a physical feature located only in China. The correct option among all the options that are given in the question is the third option or option "C". I hope the answer has come to your great help :-)
Answer:
The geographical isolation of the country.
Explanation:
Language on Iceland hasn't changed much since 1300s. The reason is simple. Iceland is located in the far northwest of Europe, not being connected with the rest of the continent. Therefore, it is practically impossible to discuss about any changes in culture, language, customs... during a long period of time. This isolationism formed a specific culture.
Population is what they both have