单选题A gypsy or gypsyhead is a（）.A punt used for painting over the sideB small, reciprocating steam engineC spool-shaped drum fitted on a winchD swinging derrick

deeply-grooved drum on the windlass with sprockets with engage the links of the anchor chain

winch that running out of control due to a failure of the overspeed trips

line that has jumped off the gypsyhead while under strain

nylon line that parts under strain and whips back in a manner

deeply-grooved drum on the windlass with sprockets which engage the links of the anchor chain

winch that is running out of control due to a failure of the overspeed trips

line that has jumped off the gypsyhead while under strain

nylon line that parts under strain and whips back in a hazardous manner

The lines may jam and then jump off the gypsyhead

If there is sudden strain on the line，the man tending the line may be pulled into the gypsyhead

The lines' surging may cause the vessel to surge

The heat generated may cause the lines to temporarily fuse to the gypsyhead