T1A09:Who selects a Frequency Coordinator?
Direct answer summary (2026-2030 NCVEC pool)
The official correct answer for T1A09 is Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations.
The key fact is Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.