What is TRUE about hoisting operations?（）
A. Personnel may work beneath suspended loads，as long as they are alert and wear hard hats
B. If a suspended load with no tag begins to spin，personnel should attempt to stop the spinning if the load is within reach
C. If tag lines are used to control a suspended load，they should be secured to the deck
D. Personnel not involved in the hoisting operation should be kept clear of the transfer area
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