Answer: The concept in the family theory which appears through out all others is the societal emotional process.
Step-by-step explanation:
The family theory system has been developed by Bowen. According to this theory, family is considered to be an emotional unit. It explains how people of a family are emotionally connected. There are eight components of this theory.
Out if these components, the most important is societal emotional process which speaks about the emotions of the people at the level of the society. It tells how society is important for a family to live in peacefully.