What safety precaution must a coach driver take before allowing passengers to disembark at a roadside stop or scenic viewpoint?

1. Open all doors while the coach is still rolling at 20 km/h
2. Ensure the bus is stopped in a completely safe location away from moving traffic, engage the parking brake, inspect the right-hand mirror to ensure no cyclists or vehicles are passing alongside, and instruct passengers to use the designated curb-side doors
3. Tell passengers to jump out onto the left traffic lane
4. Turn off the hazard lights and lock the doors