A vessel is entering port and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do?

A
Nothing; the Pilot is required by law and is solely responsible for the safety of the vessel.
B
State his concerns to the Pilot but do not interfere with the handling of the vessel.
C
Recommend an alternative action and if not followed relieve the Pilot.
D
Direct the Pilot to stop the vessel and anchor if necessary until the situation clears.
E