How should a driver steer a long tractor-trailer to execute a safe left turn at a city intersection?

1. Start turning the wheel immediately as the tractor enters the intersection, cutting the corner
2. Drive the tractor straight into the middle of the intersection before starting to turn the wheel, keeping the trailer clear of the curb
3. Turn from the right-hand shoulder to get the widest possible angle
4. Flash your high beams to force oncoming traffic to reverse out of your way