What is the best way to handle a tyre blowout on a heavy vehicle while driving at highway speeds?

1. Stomp on the brakes immediately and turn the wheel sharply to the side of the road
2. Hold the steering wheel firmly with both hands, ease off the accelerator, and steer straight while slowing down gradually
3. Turn off the engine immediately to stop fuel flow
4. Shift the transmission into neutral and engage the parking brake