Final answer:
Option C. Theorists who focus on interactive processes within grand nursing theories subscribe to Systems theories, which are concerned with the dynamic relationships and interactions within the healthcare system. The Change theory is also related to this systems-oriented perspective.
Step-by-step explanation:
The theorists who use grand nursing theories based on interactive processes ascribe to Systems theories. These theories view the provision of healthcare as a complex system involving various elements that interact with each other. Nursing theories that focus on systems are interested in the dynamic relationships that form part of patient care, rather than individual behaviors or social constructs alone.
For instance, the Change theory referenced in the question is often associated with systems thinking, as it involves understanding how changes within a system can affect overall outcomes. Diagrams like the Girls' Holistic Development Program's "theory of change" are employed to visualize and strategize how interventions can lead to desired changes within healthcare systems.
In answering question 21, the theoretical perspective that views society as having a system of interdependent inherently connected parts is also the Systems theory. This perspective aligns with the ideas put forth by British sociologist Anthony Giddens on how humans interact with systems, as well as concepts in healthcare that focus on systems change and system dynamics.