Is a dedicated 20A circuit allowed to supply power to a bathroom receptacle outlet?

A dedicated 20A circuit is indeed allowed to supply power to a bathroom receptacle outlet. According to the National Electrical Code (NEC), bathrooms require at least one receptacle outlet that is readily accessible and must be on a circuit that is either a 15A or 20A branch circuit. The code permits the use of a dedicated circuit to meet this requirement, ensuring that there is sufficient power for devices commonly used in bathrooms, such as hair dryers or electric razors, which can draw significant current.

Using a dedicated 20A circuit not only helps to prevent tripped breakers due to overload but also ensures that the circuit is compliant with the NEC provisions for bathroom receptacles. This allows the circuit to serve multiple outlets if necessary, as long as it meets the code's requirements for receptacle placement and accessibility. The other options imply limitations or conditions that are not part of the NEC standards regarding the placement of circuits in bathrooms, which is why they are not applicable in this context.