Final answer:
The NEC® requires GFCI protection for bathroom receptacles to prevent electric shocks by quickly disconnecting a circuit when a current imbalance is detected.
Step-by-step explanation:
The National Electrical Code® (NEC) specifies safety requirements for electrical systems, which includes requiring Ground Fault Circuit Interrupter (GFCI) protection for receptacles in certain areas susceptible to moisture, such as bathrooms. GFCIs are critical in these areas as they can quickly disconnect a circuit when they detect an imbalance between the incoming and outgoing current.
The NEC® outlines these requirements to ensure that any leakage current, which could pose a shock hazard, results in the GFCI tripping to prevent electric shock. While the exact section number of the NEC® requiring GFCI protection in office building bathrooms is not given in the reference materials provided, it is generally known that bathrooms should have GFCI-protected receptacles according to the NEC® for safety purposes.