According to Norbert Elias, communication systems that function well have evolutionary advantages. How did he demonstrate this concept in humans?

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Through analysis of full-body gesturesBy examining facial expressionsBy investigating the use of sign languageBy observing small indigenous communitiesBy exploring verbal dialects

Explanation

Norbert Elias illustrated the evolutionary significance of effective communication by focusing on facial expressions, showing how subtle changes in the face convey important social information and aid survival.