What personal protective equipment is required for drivers during operations?

The requirement for drivers during operations emphasizes the importance of safety and protection in potentially hazardous environments. The correct choice highlights the necessity of seat belts, helmets, and appropriate uniform attire.

Seat belts are crucial as they ensure that the driver is securely fastened in the vehicle, minimizing the risk of injury during sudden stops or accidents. Helmets are essential for head protection, especially in situations where there may be a risk of impact or falling objects, particularly in emergency response scenarios. Uniform attire not only provides identification but also often includes materials designed for safety and visibility, enhancing the driver's protection while on the job.

The other options fall short of providing comprehensive safety measures. For instance, merely requiring only seat belts and uniforms does not encompass the critical protective elements that a helmet provides. Options emphasizing only helmets and gloves ignore the need for seat belts, which are a fundamental safety feature in any vehicle operation. Lastly, while uniforms and sunglasses may contribute to visibility and protection from sunlight, they do not address head safety or the required restraint systems, making it insufficient in a operational context.

In summary, the inclusion of seat belts, helmets, and appropriate uniform attire represents a well-rounded approach to personal protective equipment, ensuring that drivers are effectively safeguarded during operations.