Question 193 Deck Safety

The correct answer is A) Received mayday. The "received mayday" signal indicates that a distress message has been received and acknowledged. This is the proper radiotelephone procedure for responding to a distress call, as outlined in the International Telecommunication Union (ITU) Radio Regulations and the USCG Radio Operator's Handbook. The other options are incorrect because they do not specifically indicate the receipt of a distress message. "SOS acknowledged" is not a standard procedure, "Roger wilco" is a general acknowledgment, and "Mayday, roger" would be an improper response, as it does not clearly confirm the receipt of the distress call.