What should you do if you miss your exit on the highway?

Answer: B — Drive to the next exit

If you miss your exit on the highway, the best course of action is to drive to the next exit. This is the safest option because it allows you to continue navigating without creating a hazard for yourself or other drivers. Attempting to back up to the missed exit can cause serious accidents, as it would involve reversing in a high-speed area. Making a U-turn on a highway is also unsafe and typically illegal, as it can lead to collisions with oncoming traffic. Stopping to ask for directions can be risky as well, as being stationary in a high-speed zone can create a dangerous situation. Therefore, proceeding to the next exit is the most appropriate response, allowing for a safe and legal way to correct your route.