What could be a consequence of not using proper GFCI outlets near water sources?

Using proper Ground Fault Circuit Interrupter (GFCI) outlets near water sources is crucial for safety. The correct answer highlights the significant risk of electrical shock that can arise in wet environments. GFCI outlets are designed to monitor the flow of electricity and shut off the power if any irregularities are detected, such as when water comes into contact with electrical components. This is particularly important in areas like kitchens, bathrooms, and outdoor spaces, where the likelihood of moisture is high.

Without GFCI protection, individuals using electrical devices near water may not be adequately protected from potential shock hazards. This can lead to severe injuries or even fatalities, making it a critical safety measure in any environment where water and electricity coexist.

The other consequences listed, such as increased electrical costs, lower quality lighting, or inability to use appliances, do not directly relate to the immediate life-threatening risks associated with electrical shock, making them less relevant in this context.