When a rear drive axle tire blows out on a passenger bus at highway speed, what physical behavior occurs and how should the driver respond?

1. The vehicle rear experiences tail-wagging (sway) and vibration; the driver must hold the steering wheel straight, release the throttle, and gently decelerate to the emergency lane
2. The steering wheel will spin freely 360 degrees; the driver must jump into the passenger aisle
3. The bus will immediately flip into the air; the driver must accelerate to maximum speed
4. The driver should immediately steer into the oncoming traffic lane