Final answer:
According to the NEC Chapter 9, Table 8, solid wire is available up to size No. 2 AWG. Therefore the correct answer is Option d.
Step-by-step explanation:
The National Electrical Code (NEC) Chapter 9, Table 8, specifies the sizes of the solid wire that are available. According to the NEC, solid wire is available up to a certain size in American Wire Gauge (AWG). Solid wire is often used for electrical wiring in homes and buildings and is characteristically a single, solid strand of wire, as opposed to stranded wire, which consists of multiple small strands twisted together.
For the given options
The correct answer based on the NEC Chapter 9, Table 8 is:
d) 2 AWG