| What is meant by the term "radio silence"? |
| A) Stations not directly involved with the on-going Distress communications may not transmit on the Distress frequency or channel. |
| B) Stations remaining off the air to safeguard proprietary information. |
| C) Two three-minute silent periods, at 15 and 45 minutes after the hour, that provide a transmitting "window" for Distressed vessels to transmit Distress alerts using J3E. |
| D) Communications on a Distress frequency or channel is banned for 24 hours following the cessation of the Distress traffic. |