A segregated ballast system is a system where （）<br>A:all ballast is processed through the oily water separator<br>B:ballast is taken on and discharged through a separate main deck riser<br>C:ballast and cargo tanks are separated by cofferdams<br>D:all ballast lines, tanks, and pumps are independent of those used for oil

A segregated ballast system is a system where （）
A:all ballast is processed through the oily water separator
B:ballast is taken on and discharged through a separate main deck riser
C:ballast and cargo tanks are separated by cofferdams
D:all ballast lines, tanks, and pumps are independent of those used for oil

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