Final answer:
The maritime signal flag 'Xray' indicates that one should stop carrying out their intentions and watch for the signaling ship's signals.
Step-by-step explanation:
In maritime signal flags, the flag Xray indicates: a) Stop carrying out your intentions and watch for my signals. Each flag in the international maritime signal flags system has a specific meaning, either alone or in combination with other flags. These flags are used to communicate important messages between ships, such as navigational instructions, safety information, and other commands.