When anchoring a small sailing vessel in rough weather，the best anchor line would be composed of（）.

A.Lowering it into a cradle
B.Placing it in a desired position
C.Spotting it with wash primer and red lead
D.Two-blocking it

A.The lines may jam and then jump off the gypsyhead
B.If there is sudden strain on the line，the man tending the line may be pulled into the gypsyhead
C.The lines' surging may cause the vessel to surge
D.The heat generated may cause the lines to temporarily fuse to the gypsyhead

A.U-Type and posilok shackles
B.C-Type and wedge shackles
C.D-Type and bow shackles
D.wedge and kenter shackles