T1F05:What method of call sign identification is required for a station transmitting phone signals?
Direct answer summary (2026-2030 NCVEC pool)
The official correct answer for T1F05 is Send the call sign using a CW or phone emission.
The key fact is Send the call sign using a CW or phone emission. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.