Final answer:
The question involves electrical box fill calculations based on the NEC and requires considering the number and size of conductors (14 and 12 AWG), a single-pole light switch, and cable clamps. The volume in cubic inches needed for the calculation is undefined, so a precise box selection cannot be provided. So, the correct option is C. 4 11/16 x 1 1/4 square
Step-by-step explanation:
When selecting a metal box for electrical installations, one must consider the number of conductors, their gauge, the presence of switches or devices, and any clamps or fittings.
The National Electrical Code (NEC) provides guidelines for box fill calculations, which include taking into account the conductor type and size.
To calculate the needed volume for the box, each type of conductor and device is assigned a certain volume in cubic inches. To answer the student's question correctly, one would need to do a box fill calculation based on the NEC code.
The student has indicated a single-pole light switch and several conductors of different AWG (American Wire Gauge) sizes: six 14 AWG conductors, four 12 AWG conductors, and two cable clamps.
According to the NEC, each 14 AWG conductor is accounted for as 2 cubic inches and each 12 AWG conductor as 2.25 cubic inches. Cable clamps should also be accounted for in the calculation, as well as the switch, which typically requires a volume allocation equivalent to the largest conductor present.
Without having the full dimensions of the options provided, one could not select the appropriate size since the volume in cubic inches is not specified.
So, the correct option is C. 4 11/16 x 1 1/4 square