How many originators and addressees are allowed in naval messages?

In naval messages, there is a specific structure that defines how communication should be formatted. The correct choice indicates that there can be one originator, which typically refers to the entity or individual sending the message, and an unlimited number of addressees, which are those who are intended to receive the communication.

This flexibility in the number of addressees allows for efficient dissemination of information across multiple recipients, which can be crucial in naval operations where many units may need to be informed about a particular matter at the same time. The one originator requirement ensures clarity in accountability and responsibility for the message's content.

The other options do not accurately represent the allowed structure for naval messages, which clarifies the roles of originators and addressees in the communication process.