The emergency signaling mirror is used to attract the attention of passing which groups?

• A. Aircraft
• B. Land personnel
• C. Aircraft, land personnel, or boats
• D. Ships

Answer: (C)

A daylight distress signaling mirror is meant to attract attention from any observer who might spot it—aircraft overhead, people on land, or other vessels on the water. By reflecting sunlight, it creates a bright flash that can be seen at a distance, so using it can help rescuers coming from the air, ashore, or at sea notice you. If you limited its use to just aircraft or just land personnel, you’d risk missing rescuers on the water or nearby boats; the device is valuable because it can signal to all three groups. For best results, aim the mirror toward the sun and toward the likely observer, and flash it repeatedly to catch attention.