Final answer:
A bus driver should wear a seatbelt at all times to protect themselves and their passengers, set a safety example, and comply with safety laws. Seatbelts are a fundamental safety measure that extends the time of impact in a collision, lowering the risk of injury.
Step-by-step explanation:
The question under consideration is, "A bus driver should wear a seatbelt:" and the correct choice here is c. At all times. This is because wearing a seatbelt is one of the most basic and important safety measures a driver can take to ensure their own safety as well as the safety of their passengers. Seatbelts help to secure the driver behind the wheel during an accident, preventing them from being thrown around the vehicle or ejected, which significantly reduces the risk of serious injury or death.
In the context of public transportation and driving safety, a bus driver, much like any other driver, is required to adhere to safety regulations and laws that mandate the use of seat belts. It is their responsibility to set an example for passengers and contribute to overall road safety.
The principles behind the use of seatbelts also tie into physics. The idea is that seatbelts prolong the time of impact in the event of a collision and mitigate the forces experienced by the occupants, thereby reducing the chance of injury. This illustrates why the use of seatbelts is pivotal, not only for bus drivers but for all vehicle occupants.