Final answer:
The correct answer is Communication, Structure, and Function, as these concepts represent the sociological paradigms that define families according to symbolic interactionism and functionalism.
Step-by-step explanation:
The three basic concepts associated with understanding a family system are Communication, Structure, and Function. These concepts reflect the sociological understanding of families as detailed by symbolic interactionism and functionalism. Families are not just groups of individuals who share a living space, but rather systems in which members have emotional connections, fulfill specific roles, and contribute to the well-being of one another and society as a whole. Symbolic interactionism allows us to appreciate the personal experiences of family members, while functionalism helps us recognize the essential functions that families perform in maintaining societal balance.