You are approaching a green light in vehicle A. An ambulance sounding its siren is approaching the same intersection and has a red light. You should:

• A. Pull over to the left before you reach the intersection.
• B. Slow down and stop if necessary to prevent getting in its way.
  Explanation:

  "Wait at the intersection until the ambulance has passed through. Ensure there are no other emergency vehicles following it."
• C. Keep driving because you have the green light.