G0B02:According to the National Electrical Code, what is the minimum wire size that may be used safely for wiring with a 20-ampere circuit breaker?
Direct answer summary (2023-2027 NCVEC pool)
The official correct answer for G0B02 is AWG number 12.
The key fact is AWG number 12. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.