When driving a bus, what is the best technique to recover if your right wheels drop off the pavement edge onto a soft shoulder?

1. Turn the steering wheel sharply to the left to force the bus back on the road
2. Apply the brakes firmly and steer hard right
3. Keep the steering wheel straight, ease off the accelerator, and slow down before gently steering back onto the road
4. Accelerate rapidly to gain momentum and steer left