Final answer:
The most common kinship naming system in North America and Europe today is bilateral descent, where kinship is traced through both the father and mother.
Step-by-step explanation:
The most common kinship naming system in North America and Europe today is bilateral descent. In bilateral descent, kinship is traced through both the father and mother, and individuals consider both paternal and maternal ancestors to be part of their family. This kinship system is followed by about 60% of societies, especially in modernized nations.