Passenger buses may carry certain items but must NEVER transport which of the following?

Passenger buses are designed to prioritize the safety of all passengers on board, and therefore, there are strict regulations regarding the transportation of hazardous materials. Class 2 poisons and explosives are particularly dangerous due to their potential to cause harm or create hazardous situations in the event of an accident or incident. These materials can pose significant risks not only to the passengers and driver but also to others on the road.

Transporting such substances could lead to severe consequences, including chemical exposure, detonation, or fire, which cannot be safely handled within the confines of a passenger bus. The regulatory framework surrounding public transport is built to ensure passenger safety, and the prohibitions on carrying these dangerous materials are in place to prevent catastrophic outcomes.

While other choices may involve prohibited items, Class 2 poisons and explosives specifically highlight the extremes of risk associated with transporting dangerous goods in a passenger bus environment. Therefore, the correct answer emphasizes the critical nature of safety standards in transportation.