How must a professional driver interact with passengers with disabilities or reduced mobility under Chilean public transport regulations?

1. Refuse boarding because it takes too much time
2. Provide accessible boarding assistance, ensure priority seating is respected, secure wheelchairs in designated restraint bays with occupant seatbelts, and wait for complete passenger seating before moving the vehicle
3. Charge double fare for carrying mobility equipment
4. Require passengers with disabilities to ride in the luggage compartment