What is a feature of an approved safety can for flammable liquids

Hello. This question is incomplete. The full question is:

"What is a feature of an approved safety can for flammable liquids? A. Permits vapors to escape B. Prevents vapors from escaping C. Promotes spillage "

B. Prevents vapors from escaping

Explanation:

Flammable products are dangerous products that can cause a lot of damage to humans and even the environment. This is because these products can easily cause burns or fires of varying proportions, causing physical, emotional and economic damage.

For this reason, it is necessary that the packaging of flammable products does not allow these products to leak and cause accidents, especially when the contents of that packaging are an inflammable liquid or a flammable gas. In summary, these packages must prevent any type of leakage that may occur.

i-i-i-i-i-i don't k-k-k-k-know.