If an emergency vehicle is blocking an intersection, what should you do?

Answer: D — Avoid blocking the intersection and follow the directions of the emergency personnel

When an emergency vehicle is blocking an intersection, it is important to avoid stopping in the intersection to prevent any potential collisions or obstruction of the emergency vehicle. It is also important to follow the directions of the emergency personnel, who may be directing traffic in a certain way to allow the emergency vehicle to pass through. Pulling over, speeding, or driving through the intersection without caution can put yourself and others in danger. Therefore, option D is the best course of action in this situation.