CATEGORY I EPIRB's transmit on frequencies that are monitored by __________.

Correct Answer: Option C — orbiting satellites in space

Category I EPIRBs operate on 406 MHz, transmitting distress signals directly to Cospas-Sarsat low-earth orbiting and geostationary satellites. These space-based assets instantly relay the unique identification and GPS coordinates to Global Maritime Distress and Safety System rescue coordination centers.