What type of signal indicates that you are anchoring?

Using a sound signal or flag to indicate your intention when anchoring is important for maintaining safety and communication on the water. When you are anchoring, you signal your intentions to other boaters to avoid collisions or misunderstandings. This is particularly crucial in crowded areas or when visibility is limited. Sound signals, such as horns or bells, and visual signals, like a flag, communicate your actions effectively.

This practice aligns with maritime regulations and navigational rules that help ensure that all vessels are aware of each other's movements. The other options do not provide a clear communication method to nearby boats, which can lead to confusion or dangerous situations on the water.