If your vehicle experiences a front tyre blowout while traveling at 50 km/h, what is the safest immediate reaction?

1. Slam on the foot brake as hard as possible and jerk the steering wheel to the side
2. Grip the steering wheel firmly with both hands, maintain a straight line, ease off the accelerator, and brake gently once the vehicle is stabilized
3. Pull the handbrake immediately and shift into reverse
4. Turn off the ignition key while in motion