What should you do if you see an emergency vehicle with flashing lights?

Answer: B — Pullover to the right and stop until the vehicle has passed

When you see an emergency vehicle with flashing lights, the appropriate response is to pull over to the right side of the road and stop until the vehicle has passed. This action is essential because it allows emergency responders to reach their destination safely and quickly without navigating through traffic. Stopping and yielding to emergency vehicles is a legal requirement in many jurisdictions, including Missouri, and it plays a critical role in ensuring the safety of both the emergency personnel and other road users. By stopping, you prevent potential accidents and allow for a clear path for the emergency vehicle, which is often responding to urgent situations. This response to emergency vehicles is crucial for public safety and an important part of responsible driving behavior.