What are the two types of basic construction for school buses?

The correct answer is related to the two distinct types of basic construction methods used for school buses: integral construction and body-on-chassis. Integral construction refers to a method where the bus body and chassis are combined into a single unit, providing structural integrity and enhancing safety during impacts. This design can lead to better handling and a reduction in the overall weight of the vehicle.

On the other hand, body-on-chassis construction involves mounting the bus body onto a separate chassis or frame. This approach allows for greater flexibility in design and repairs. It is traditionally used for various types of vehicles, including trucks and buses, and can facilitate easier modifications or replacements of components.

Both construction types play a significant role in the overall performance, safety, and maintenance of school buses, catering to the diverse needs of school transportation. The other options mentioned do not accurately represent the common construction methods specifically used for school buses, as they refer to different concepts or automotive architectures not typically applied in this context.