What should a driver do if their vehicle breaks down on the highway?

Answer: B — Pull off the highway as far as possible

When a vehicle breaks down on the highway, the safest and most responsible action for a driver is to pull off the highway as far as possible. This minimizes the risk of accidents and ensures the safety of both the driver and other road users. By moving the vehicle to a safe area, such as the shoulder or a nearby breakdown lane, the driver reduces the likelihood of being struck by passing vehicles, which can pose a serious hazard. Stopping in the travel lane can create a dangerous situation for the driver and other motorists, as it can lead to collisions. Similarly, getting out to flag down help may expose the driver to risk from oncoming traffic. Waiting on the highway for assistance does not address the safety issue and can further impede traffic flow. Therefore, pulling off the highway is the most effective way to ensure safety until help can arrive.