Which of the following emphasizes plumbing changes in compensating construction?

The correct answer emphasizes plumbing changes specifically within the context of compensating construction. Plumbing compensating construction refers to modifications or adjustments made to plumbing systems to account for various factors, such as renovations, changes in layout, or enhancements needed to ensure compliance with building codes and standards. This type of construction is critical when the existing plumbing configuration does not support new design requirements or when plumbing systems must be altered to accommodate increased occupant loads or changes in building use.

In this scenario, the other options, while related to compensating construction broadly, do not focus solely on plumbing alterations. General compensating construction pertains to overall changes that may include various building systems but does not specifically isolate plumbing. Structural compensating construction deals with modifications related to the building's framework, which may involve load-bearing elements rather than plumbing systems. Occupant load compensating construction addresses adjustments made based on the number of occupants a space must accommodate but again is not specific to plumbing. Thus, plumbing compensating construction accurately captures the focus on changes to plumbing systems within the broader topic of compensating construction.