Who has the exclusive use of the radiotelephone as stated in the "Vessel Bridge-to-Bridge Radiotelephone Act"?

Correct Answer: Option D — All of the above

The Vessel Bridge-to-Bridge Radiotelephone Act (33 CFR 26.03) specifies that the Master, the person in charge, or any person designated by the Master—including a pilot—has the authority to use the radiotelephone. This ensures that those responsible for the vessel's navigation have direct access to essential safety communications.