If a passenger suddenly collapses in the bus aisle, loses consciousness, and stops breathing normally, what is the driver's immediate first aid protocol?

1. Stop the bus safely, call 120 emergency medical services immediately, place the victim on their back on the firm flat aisle floor, and initiate Cardiopulmonary Resuscitation (CPR / 心肺复苏) without delay
2. Pick up the victim and shake them vigorously by the shoulders while pouring cold water into their mouth
3. Sit the unconscious victim upright on a seat and slap their face repeatedly
4. Continue driving to the route terminus and let the cleaning staff handle the passenger