If a passenger experiences sudden acute chest pain, radiating pain to the left arm/jaw, shortness of breath, and profuse sweating (suspected myocardial infarction / 心肌梗死), how should the driver assist?

1. Stop safely, dial 120, place the patient in a comfortable semi-reclining resting position, keep them calm, loosen tight clothing, assist with their prescribed sublingual nitroglycerin if available, and avoid making them walk
2. Force the passenger to run up and down the bus aisle to promote blood circulation
3. Give the patient a large meal and hot alcoholic beverage immediately
4. Lay the patient flat on their stomach and apply heavy pressure to their lower back