G2B05:When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?
Direct answer summary (2023-2027 NCVEC pool)
The official correct answer for G2B05 is 2 kHz to 3 kHz.
The key fact is 2 kHz to 3 kHz. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.