问题：

[单选] 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