What should a driver do if they miss their exit on the highway?

Answer: B — Continue to the next exit and turn around; do not back up

When a driver misses their exit on the highway, the safest and most appropriate action is to continue to the next exit and then turn around. This approach avoids the significant risks associated with attempting to back up or make sudden maneuvers on a high-speed roadway. Backing up on the highway can lead to dangerous situations, as it is highly unsafe and illegal. Highways are designed for continuous flow of traffic, and any abrupt action like backing up could result in collisions. Making a U-turn at the next available point may also be unsafe, as U-turns are often prohibited in certain areas of highways, particularly where it could disrupt the flow of traffic or where it is not designed for such maneuvers. Waiting for traffic to clear in order to turn back is not a practical or safe solution, as it could lead to confusion and possible accidents. By opting to continue to the next exit and turn around, a driver ensures that they are following traffic laws, maintaining their safety and that of others on the road, while also effectively rerouting themselves without causing disruption to traffic flow.