The correct answer is A. structure.

A static concept of organizing deals with the structure of an organization. This includes the hierarchy of positions, the lines of communication, and the division of labor. The structure of an organization can be formal or informal. A formal structure is one that is defined by rules and regulations, while an informal structure is one that is based on relationships and personal interactions.

The structure of an organization is important because it determines how work is done and how decisions are made. A well-designed structure can help an organization to be efficient and effective. However, a poorly designed structure can lead to problems such as communication breakdowns and conflict.

The other options are incorrect because they do not deal with the structure of an organization. Option B, medium, refers to the way in which information is communicated within an organization. Option C, plans, refers to the goals and objectives of an organization. Option D, methods, refers to the way in which work is done within an organization.