Class 1.4 pertains to which item?

• A. Explosives
• B. Propellants
• C. Medical supplies
• D. Ammunition

Answer: (D)

Class 1 covers explosives, and its divisions describe how risky the item is if it ignites. Division 4 is for items where a mass explosion is unlikely and where any blast or projection hazard is limited. Ammunition fits this description well: it’s designed to function to deliver energy in a controlled way, but under ordinary handling it isn’t expected to produce a large, uncontrollable blast. That makes ammunition the typical example of a Class 1.4 item, which is why it’s the correct choice. The other options don’t fit because they aren’t the limited-hazard explosives category: medical supplies aren’t explosives, and while propellants and other explosive materials exist, they’re categorized differently depending on their hazard profile.