What is the most appropriate action for a GMDSS Radio Operator to take in a distress situation where immediate help is needed, but the vessel is not sinking nor needs to be abandoned?

Correct Answer: Option A — Transmit Distress call by MF/HF, VHF or INMARSAT.

GMDSS procedures under SOLAS Chapter IV and FCC regulations require transmitting a digital distress alert via MF/HF, VHF, or Inmarsat when grave and imminent danger threatens the ship, even if abandonment is not immediately required, ensuring rapid Rescue Coordination Center notification.