What must a driver do when encountering an emergency vehicle pulling over?

Answer: B — Move over to provide space and slow down

When encountering an emergency vehicle that is pulling over, the driver must move over to provide space and slow down. This action is critical for ensuring the safety of emergency responders who may be exiting their vehicles, as well as for maintaining safety for all road users. By moving over, the driver creates a safe distance between their vehicle and the emergency vehicle, reducing the risk of accidents. Slowing down is equally important, as it allows the driver to maintain control of the vehicle in a potentially unpredictable and dynamic situation. This practice is also mandated by law in many jurisdictions, which requires drivers to yield to emergency vehicles. In contrast, speeding up to pass would increase the danger to both the emergency personnel and other motorists. Ignoring the vehicle entirely disregards the law and compromises safety, while changing lanes without looking could lead to collisions. Therefore, moving over and slowing down is the appropriate and responsible response in such situations.