What must you do if an emergency vehicle approaches with its lights flashing?

Answer: C — Pull over to the right and stop

When an emergency vehicle approaches with its lights flashing, the appropriate action is to pull over to the right side of the road and come to a complete stop. This maneuver allows the emergency vehicle to pass safely and quickly. Emergency vehicles, such as ambulances, fire trucks, and police cars, often need to respond to urgent situations where every moment counts. By pulling over, you not only comply with traffic laws but also demonstrate a civic responsibility to ensure public safety. Staying in your lane or speeding up, as mentioned in the other choices, could put you and emergency responders at risk, potentially hindering their ability to reach an emergency scene. Ignoring the approaching vehicle could lead to serious consequences, especially if the emergency vehicle needs to navigate through traffic.