Which activity is NOT a valid method of signaling distress?

Answer: B — Shouting into the wind

Shouting into the wind is not an effective method of signaling distress because it relies on vocal projection, which can easily be lost or drowned out by the sound of waves, wind, or other ambient noises. This makes it difficult for others to hear and locate the source of the distress signal. In contrast, the other methods listed are recognized maritime distress signals that can be perceived over long distances or are visible to other vessels. For example, firing a gun produces a loud noise that can alert nearby boats to a distress situation. Using a square flag and ball provides a visual cue that can be seen from afar, especially during daylight. Creating visible flames on the vessel serves as a clear indication of distress and can attract attention, especially at night. Therefore, shouting into the wind lacks the necessary effectiveness for signaling distress compared to these other methods.