Why is it important to properly secure wheelchairs in the bus?

Securing wheelchairs properly in a bus is crucial primarily for safety reasons. When a wheelchair is not secured, it can shift during transit, leading to potential accidents or injury for the student or other passengers. Ensuring that the wheelchair is securely fastened minimizes the risk of tipping or moving unexpectedly, which is essential in maintaining the safety of all individuals on the bus.

While complying with state regulations and making boarding easier are important considerations, the main priority should always be the safety of the passengers. Saving space, although beneficial, does not take precedence over the necessity of transporting students safely and securely. Therefore, the emphasis on safety is the fundamental reason for the correct answer.