On a class “B” fire，which portable fire extinguisher would be the LEAST desirable?（）

A.she needs provisions and bunkers immediately after berthing
B.even she will berth here the vessel does not need any provisions and bunkers
C.she will take provisions and bunkers at other berth
D.she needs no provisions and bunkers even after berthing

A.putting on a fireman's outfit，if the vessel is so equipped
B.donning a self-contained breathing apparatus，if the vessel is so equipped
C.activating the general alarm and reporting inoperative alarm systems and fire-detection systems
D.refilling and servicing all expended fire extinguishing equipment