Which group of items is forbidden to be carried by air passengers?

• A. Fireworks
• B. Liquid Oxygen Devices, Electroshock Weapons, Pepper spray, Lithium Ion Batteries
• C. Food Items
• D. Books

Answer: (B)

Safety rules classify certain items as prohibited on passenger flights because they can cause harm or disrupt the operation. The group in question includes items that are clearly dangerous or highly restricted: liquid oxygen devices, electroshock weapons, pepper spray, and lithium ion batteries. Liquid oxygen devices present a serious fire and explosion risk in the confined environment of an aircraft. Electroshock weapons are designed to incapacitate and are not allowed on board. Pepper spray is a chemical irritant that could injure or incapacitate passengers or crew, making it prohibited. Lithium ion batteries carry a significant fire hazard if damaged or short-circuited, and strict packing and carriage rules apply. Together, these items are widely forbidden for air passengers due to safety and security concerns.

Food items and books are generally allowed after screening, and while liquids have volume and packaging restrictions, they are not categorically forbidden in the same way as the items listed above.