Final answer:
Hazardous materials allowed on a bus generally include medically prescribed oxygen in possession of a passenger and personal use articles of the passengers. Option mentioning 500 lbs. of ORM does not normally apply to passenger buses, so the answer is not 'All of the Above'.
Step-by-step explanation:
Regarding the transportation of hazardous materials on a bus, there are certain regulations that have to be followed. These regulations are based on the United States Department of Transportation hazardous materials regulations, as well as the Environmental Protection Agency's (EPA's) hazardous waste regulations. Specifically, certain items are allowed to be carried under particular circumstances:
- Oxygen that is medically prescribed and is in the possession of a passenger.
- Personal use articles that are in the possession of a passenger.
However, the option mentioning up to 500 lbs. of ORM (Other Regulated Materials) in 100 lb. increments, not of any one class, is not specified in standard passenger transport regulations and would normally apply to cargo or freight transport rather than passenger buses. Thus, the accurate answer is not 'D. All of the Above.' Care must be taken to ensure that the hazardous materials do not pose a risk to passengers, and they must be transported in accordance with specific safety guidelines.