Passage: "Stopping distance is the total distance a vehicle travels from the moment a driver sees a hazard until the vehicle comes to a complete stop. It includes reaction distance, the distance traveled while the driver responds, and braking distance, the distance traveled while the brakes slow the vehicle. Both increase as speed increases." According to the passage, total stopping distance is made up of:

1. Reaction distance and braking distance
2. Only braking distance
3. Speed and weather
4. Following distance and lane width