What is a consequence for a vessel constrained by her draught according to Rule 18d?

A vessel constrained by her draught has specific responsibilities under Rule 18d of the COLREGs. The rule states that such vessels should avoid impeding the safe passage of other vessels that can safely navigate only in a deep draught. This is critical because vessels with deep draughts rely on sufficient water depth to operate safely, and if a constrained vessel were to impede their path, it could lead to hazardous situations, including grounding or collision.

By adhering to this responsibility, the vessel constrained by her draught is actively contributing to safe navigation on the waterway, ensuring that other vessels can proceed without obstruction. This obligation reflects a larger principle in maritime law that emphasizes safety and the importance of respecting the navigation rights of vessels in specific categories, particularly those that may have limited maneuverability or specific operational restrictions.

The other options do not align with the responsibilities outlined in Rule 18d and misinterpret the required conduct for vessels constrained by their draught.