The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products，while simultaneously cooling the inert gas，is called the（）.

A.shoreside loading rate
B.maximum cargo pump discharge rate
C.boiler forced draft fan rate
D.size of the largest cargo tank

A.normal water supply at the water seal is lost
B.the temperature of the inert gas being delivered to the cargo tanks is more than 150°F
C.the cooling water supply to the scrubbers is lost
D.all of the above