What does the Oscar Flag signal?

The Oscar Flag signals a "Man overboard" situation. In maritime signaling, the Oscar Flag, represented by a yellow and black flag, is specifically designated to alert crew members and other ships that someone has fallen overboard and immediate action is required to recover the individual. This signaling method is crucial for safety, as it informs all nearby vessels and crew members about the emergency, prompting them to assist in the rescue efforts as necessary.

Understanding the significance of this flag is vital for maritime operations, as it emphasizes the importance of rapid response when a person is in distress in the water. In contrast, the other options pertain to different situations and would each require distinct flags or signals that are not indicated by the Oscar Flag.