Which division does NOT belong to the five major divisions of a set of blueprints?

The choice of interior designs as the option that does not belong to the five major divisions of a set of blueprints is correct because blueprints typically focus on the construction and assembly aspects of a building rather than its internal decorative elements.

Blueprints are primarily categorized into five major divisions: architectural drawings, structural drawings, mechanical drawings, and others that generally include electrical and plumbing drawings. Architectural drawings detail layouts, dimensions, and aesthetic features of the building; structural drawings provide information on the framework and load-bearing elements; mechanical drawings illustrate mechanical systems such as HVAC units or plumbing details.

Interior design focuses on the decoration and arrangement of interiors, which while important, is more about furnishings, colors, and stylistic details than the technical specifications required to construct a building. Thus, it stands apart from the major divisions that provide critical information necessary for the construction and functioning of the structural and mechanical components of a project.