T9B07:Which of the following is true of PL-259 type coax connectors?

Direct answer summary (2026-2030 NCVEC pool)

The official correct answer for T9B07 is They are commonly used at HF and VHF frequencies.

The key fact is They are commonly used at HF and VHF frequencies. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.