A vessel is entering port A for the first time 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（）.
- ANothing; The Pilot is required by law and is solely responsible for the safety of the vessel
- BState his concerns to the Pilot but do not interfere with the handling of the vessel
- CDirect the Pilot to stop the vessel and anchor if necessary until the situation clears
- DRecommend an alternative action and if not followed relieve the Pilot