Question 607 Rules of the Road

The correct answer is D) diving operations. The International Code flag "A" is the signal flag for "diver down" or "divers in the water." This signal flag indicates that a vessel is engaged in diving operations and that other vessels should keep clear and proceed at a safe speed. This is in accordance with the International Regulations for Preventing Collisions at Sea (COLREGS), which govern the navigation rules for vessels at sea. The other answer choices are incorrect because they do not correspond to the signal flag for "diver down." Mineclearance operations, dredging operations, and fishing do not use the International Code flag "A" as a signal.