Answer: The theory that grew out of the general systems theory is:
Family systems theory
Family systems theory, developed by Murray Bowen and others, emerged from the general systems theory and applies its principles to the study of families and their dynamics. It views families as complex systems composed of interconnected elements, where changes in one part of the system can affect other parts. Family systems theory emphasizes the importance of understanding family interactions, communication patterns, roles, and boundaries in shaping individual and family functioning.