What should a driver do when approaching a railroad crossing where the barriers are open?

Answer: C — Approach at a moderate speed and observe the tracks

When approaching a railroad crossing where the barriers are open, the correct action is to approach at a moderate speed and observe the tracks. This approach ensures that the driver remains vigilant, allowing for proper assessment of any oncoming trains or additional hazards. Even if the barriers are open, it's essential to check for signs of an approaching train, as trains can often come quickly and may not always be visible until they are quite close. Observing the tracks allows the driver to make a sound judgment about whether it is safe to proceed. This practice aligns with safe driving principles, emphasizing caution in potentially hazardous situations like railroad crossings. It's crucial for drivers to remain alert and prepared for any sudden changes in conditions, such as an unexpected train. By taking this approach, the driver prioritizes safety, reducing the risk of accidents at railway intersections.