What should you do when approaching a railroad crossing?

Answer: B — Look, listen and slow down

When approaching a railroad crossing, it is important to look and listen for any oncoming trains. By slowing down, you give yourself more time to assess the situation and ensure that it is safe to cross the tracks. Speeding up can be dangerous as it may be more difficult to stop in time if a train is approaching. Crossing as soon as the arms are up may also be dangerous as there may still be a train approaching. Stopping and proceeding when safe is not entirely correct either, as it is important to slow down and assess the situation before proceeding.