A large oil fire is best extinguished with（）

A.stopping the flow of gas
B.reducing the chemical chain reaction
C.increasing the oxygen supply
D.cooling below the autoignition point

A.burner valve
B.root valve
C.quick closing valve
D.oil return valve

A.paint thinner in an open can
B.fuel accumulation in the bilge
C.oily rags in an unvented compartment
D.gasoline stored in steel drums