What should you do if your car breaks down on the expressway?

Answer: D — Use hazard lights and stay in the vehicle

When your car breaks down on the expressway, the safest course of action is to use your hazard lights and stay in the vehicle. Activating your hazard lights alerts other drivers that your car is experiencing difficulties, which is crucial for your safety as vehicles continue to travel at high speeds. Staying in your vehicle provides protection from traffic and allows emergency responders to locate you more easily. Additionally, remaining inside your car avoids potential hazards associated with moving around on the expressway, such as being exposed to fast-moving vehicles. If you're in a safe location to do so, it's advisable to remain buckled up until help arrives. This approach balances safety with the necessary action of signaling for assistance without exposing yourself to unnecessary risks on a busy roadway.