Notice of Mandatory Refresher Training Course During the next ten months, all bus operators with two or more years of service will be required to have completed 20 hours of refresher training on one of the Vehicle Maneuvering Training Buses. Instructors who have used this new tech nology report that trainees develop skills more quickly than with traditional training methods. In refresher training, this new system reinforces defensive driving skills and safe driving habits. Drivers can also check their reaction times and hand-eye coordination. As an added benefit, the city expects to save money with the simulators, because the new sys tem reduces the amount of training time in an actual bus—saving on parts, fuel, and other oper ating expenses. All bus operators are required to do which of the following? a. Receive training in defensive driving and operating a computer. b. Complete ten months of refresher driver training. c. Train new drivers on how to operate a simulator. d. Complete 20 hours of training on a simulator.