Which term describes the approach that delineates management functions such as planning and controlling?

The Administrative Principles Approach is the correct choice as it specifically focuses on the functions and principles of management, particularly emphasizing the organization and management of an entire business or institution. This approach seeks to establish a framework for the various roles and responsibilities within management, including critical functions like planning, controlling, organizing, and leading.

The Administrative Principles Approach was developed to create a systematic framework for management that outlines defined roles, hierarchies, and processes. Pioneers of this approach, such as Henri Fayol, articulated several principles intended to optimize management's effectiveness, which directly relates to the categorization of planning and controlling as core management functions.

In contrast, while the Behavioral Science Approach focuses on the behavior of individuals and groups within organizations, the Scientific Management Approach is mainly concerned with optimizing work processes and efficiency through scientific principles. The Human Relations Movement emphasizes the importance of interpersonal relationships and employee morale, which does not address the delineation of management functions in the same systematic way as the Administrative Principles Approach.