单选题At sea，you are approaching a small vessel and see that it has the signal flag P hoisted. What should you do?（）.AProceed on present course and speed since the vessel is stopped and making no way through the waterBKeep clear of the vessel because it has a diver downCAttempt to call the vessel on VHF radiotelephone because someone on board requires medical assistanceDApproach with caution because the vessel is a fishing vessel and its nets are fouled on an obstruction
单选题
At sea，you are approaching a small vessel and see that it has the signal flag P hoisted. What should you do?（）.
A
Proceed on present course and speed since the vessel is stopped and making no way through the water
B
Keep clear of the vessel because it has a diver down
C
Attempt to call the vessel on VHF radiotelephone because someone on board requires medical assistance
D
Approach with caution because the vessel is a fishing vessel and its nets are fouled on an obstruction
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