What is the correct action if the flashing lights at a railroad crossing are active?

Answer: B — Stop and wait until the lights stop

When you encounter flashing lights at a railroad crossing, the correct action is to stop and wait until the lights stop. This is crucial because the flashing lights indicate that a train is approaching and it may not be safe to cross at that moment. Trains can come unexpectedly and travel at high speeds, making it essential for drivers to adhere to traffic signals and ensure their safety as well as the safety of others on the road. By stopping when the lights are flashing, you are minimizing the risk of a collision with a train, which can be life-threatening. This rule is in place for public safety, and it is critical that all drivers follow it to ensure they do not take unnecessary risks when approaching railroad crossings.