What provides little or no indication that a vessel is dragging anchor?

Correct Answer: Option D — Drift lead with the line leading perpendicular to the centerline

A drift lead perpendicular to the centerline indicates the vessel is moving parallel to the anchor cable, providing no visual reference for dragging. Conversely, changing bearings or radar ranges to fixed objects provides clear evidence of movement relative to the seabed, while cable vibrations indicate the anchor is dragging across the bottom.