G1B05:Which of the following one-way transmissions are permitted?
Direct answer summary (2023-2027 NCVEC pool)
The official correct answer for G1B05 is Transmissions to assist with learning the International Morse code.
The key fact is Transmissions to assist with learning the International Morse code. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.