When riveted joints occur at the ends of plating they are called（）.

A.Gantline
B.Heaving line
C.Preventer
D.Warp

A.Maintain the original balance of the tension in the wires and strands
B.Prevent moisture from entering between the wires at the cut end
C.Forces lubricant from the core to protect the raw，cut end
D.All of the above