What is the primary purpose for Digital Selective Calling (DSC)?

Correct Answer: Option D — DSC is to be used for transmitting and receiving distress alerts to and from other ships or coast radio stations via radio.

Digital Selective Calling operates under SOLAS Chapter IV and ITU Radio Regulations to automate distress, urgency, and safety alerting on marine VHF, MF, and HF frequencies, ensuring immediate communication capability between vessels and shore-based rescue coordination centers.