Your vessel is going from a warm climate to a cold climate with a hygroscopic cargo. Which statement is true?（）.

A.You must ventilate constantly and vigorously to combat ship sweat A.Press up the slack No.1 starboard double bottom tank

B.You should ventilate; there is little danger of ship sweat, but a possibility of cargo sweat

C.There is danger of heavy cargo sweat if you ventilate

D.There is little danger of any sweat problem