Final answer:
The maritime signal flag "Juliet" indicates that a ship is taking in, discharging, or carrying dangerous cargo, serving as a caution for nearby vessels.
Step-by-step explanation:
The flag "Juliet" in maritime signal flags indicates: b) I am taking in, discharging, or carrying dangerous cargo. This is an important message for other ships in the vicinity, as it informs them to proceed with caution. Each signal flag has a specific meaning, and mariners must understand these to communicate effectively while at sea.
The presence of the Juliet flag on a vessel signals to others that there is a potential hazard, and it serves as a safety measure to prevent accidents related to the handling or proximity of dangerous goods.