In construction, what does a floor plan typically indicate?

A floor plan is a fundamental architectural drawing that provides a detailed representation of a building's layout as seen from above. It shows the arrangement of various spaces, including the dimensions and relationships between rooms, corridors, and other areas within the building. Understanding the layout of rooms is crucial for determining how a space will function and how people will move through it, which is why this option is the correct answer.

While a floor plan may include some details related to plumbing, electrical wiring, or structural components, its primary focus is on illustrating the organization and flow of the spaces rather than detailing every system within the building. This is why the other choices are less accurate representations of what a floor plan is primarily intended to convey.