When driving a large passenger coach into a sharp bend or mountain curve, what is the correct vehicle handling technique to ensure passenger safety?

1. Accelerate sharply while entering the curve to counter centrifugal force with momentum
2. Decelerate smoothly before entering the bend ('slow in, smooth out' / 减速慢行), select an appropriate gear, and maintain a steady steering radius without jerky corrections
3. Coast through the curve in neutral (空挡) while applying intermittent handbrake pressure
4. Steer across into the opposing oncoming lane to straighten the curve radius at high speed