Which firefighting method is an example of an indirect attack on a fire?（）.

A.Bouncing a straight stream of water off the overhead to create spray effect
B.Spraying foam on a bulkhead and letting it flow down and over a pool of burning oil
C.Flooding a paint locker with CO₂ and sealing the compartment
D.Cooling adjacent bulkheads with water to prevent the spread of the fire by conduction