You are ordering ship’s stores. Which statement is TRUE?（）.
A.Up to five gallons of a flammable liquid may be stowed in the engine room
B.All stores of line，rags，linens and other similar type stores must be certified by UL as being fire retardant
C.Cylinders containing compressed gasses must be constructed and tested in accordance with the Bureau of Standards
D.All distress flares when received must be stored in the portable magazine chest
