Final answer:
The precedence proword that would be on the message is URGENT. Precedence prowords are used to prioritize message delivery based on urgency and importance.
Step-by-step explanation:
The precedence proword that would be on the message is URGENT. It indicates that the message needs to be delivered within 1-3 hours. Precedence prowords are used in communication systems, especially in military and emergency services, to prioritize message delivery based on urgency and importance.
For example, when a message is marked with the precedence proword ROUTINE, it means that the message is of the lowest urgency and can be delivered at the convenience of the communication system.
Other precedence prowords include PRIORITY (higher urgency), FLASH (immediate delivery), and IMMEDIATE (highest urgency).