33.A vessel constrained by her draught shall, when risk of collision with another vessel in acrossing or head-on situation exists, .
(A)apply the relevant steering and sailing rule as a power-driven vessel.
(B)apply the relevant steering and sailing rule as a sailing vessel.
(C)apply the relevant steering and sailing rule as a vessel not under command.
(D)apply the relevant steering and sailing rule as a vessel engaged in a towing operation.