What should you do if an emergency vehicle is approaching with its siren on while you are at an intersection?

When an emergency vehicle approaches with its siren activated, the appropriate action is to stop and allow the vehicle to pass. This is crucial for several reasons. First, emergency vehicles often respond to critical situations that require prompt attention; thus, giving them the right of way can help them reach their destination faster and potentially save lives.

By stopping, you not only ensure that the emergency vehicle can navigate through the intersection safely but also protect yourself and other road users from potential accidents that could occur if vehicles are moving through the intersection simultaneously.

It's also important to note that waiting and stopping allows you to assess the situation if there are more emergency vehicles following. Ensuring a clear path for them ensures that the response to an emergency is not hindered. The other options presented do not prioritize the safety and effectiveness required in such scenarios, making them less appropriate responses when encountering an emergency vehicle.