When checking a mooring line，you should（）.
题型：单项选择题
问题：
When checking a mooring line，you should（）.
A.ensure the bight is not fouled between the ship and the dock by taking up slack
B.pay out slack smartly and keep free for running
C.secure more turns to hold the line against any strain，then clear the area
D.surge the line so that it maintains a strain without parting