How must each storage tank for helicopter fuel on a ship be marked?（）

A.Change of employment
B.Permit to proceed
C.Application for inspection
D.Temporary Certificate of Inspection

A.in the engine compartment
B.in the fuel tank space
C.above or outside the hull
D.at the most convenient location

A.any certificated tankerman
B.the Master of the vessel
C.the officer of the watch
D.the person designated as person in charge