单项选择题
What should you do to a line to prevent fraying where it passes over the side of the vessel（）.
A.Worm that part of the line
B.Splice that part of the line
C.Cover it with chafing gear
D.Install a cleat
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A.Lead
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A.To act as ballast for light vessels
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What is the bow type anchor shackle primarily used for（）.
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