单项选择题

A passenger vessel is underway. When may passengers vis……

A passenger vessel is underway. When may passengers visit the pilothouse? （）

A.Passengers are excluded from the pilothouse while underway
B.Passengers are permitted in the pilothouse during daylight hours only
C.Passengers are permitted to visit the pilothouse when authorized by the Master and officer of the watch
D.Passengers are permitted in the pilothouse when they are escorted by a ship's officer

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