Which of the following should not be installed within a bathroom?

In a bathroom, it is crucial to prioritize safety due to the presence of water, which significantly increases the risk of electrical shock. Unprotected outlets should not be installed in such an environment because they do not provide the necessary safety features to prevent electrical hazards.

When outlets are exposed to moisture without proper protective measures, they can create a dangerous situation for anyone using electrical devices in that space. This makes unprotected outlets unsuitable for bathrooms, where humidity and splashes from water can easily cause short circuits or electrical shocks.

In contrast, GFCI-protected receptacles are specifically designed to cut off the electrical supply when they detect a ground fault, enhancing safety in wet areas. Similarly, light fixtures that are rated for wet locations are constructed to withstand moisture and are safe to use in bathrooms. Standard electrical outlets can be appropriate when installed outside of damp areas, but in the immediate vicinity of a sink or a tub, unprotected outlets are not advisable.