Question 1506 Deck Safety

The correct answer is D) Red flares. Red flares are the required distress signal for a liferaft in ocean service, as they can be effectively used to attract the attention of aircraft at night. Red flares produce a bright, intense light that is visible for several miles, making them an ideal choice for signaling distress in open ocean conditions. The other options, such as smoke markers, water lights, and orange dye markers, are not suitable for this specific scenario as they are either less visible at night, have a shorter range, or are designed for different purposes.