Which type of receptacle may be included on a small appliance branch circuit?

The correct answer is the electric clock/gas range because it typically draws a limited amount of current and is often considered a small appliance. Small appliance branch circuits are designed to supply power to receptacles serving general-purpose loads, such as those used for kitchen appliances that are not heavy-duty or high-current, like stoves and some larger appliances.

Electric clocks are low-wattage devices, so they fit well within the capacity of a standard small appliance branch circuit. The inclusion of a gas range, which does not require significant electrical power to operate, further reinforces its compatibility with these circuits.

On the other hand, electric stoves and washing machines typically require a dedicated circuit due to their higher power demands, while refrigerators, although sometimes connected to general circuits, may need a dedicated circuit depending on their size and wattage. Inclusion of these appliances within small appliance branch circuits could lead to overloads and unsafe conditions. Thus, the electric clock/gas range is the appropriate choice for being included in a small appliance branch circuit.