What should an instructor teach about the dangers of tailgating?

1. Tailgating is acceptable in heavy traffic to prevent other cars from cutting in — tailgating removes the time and distance needed to stop safely.
2. Tailgating drastically reduces reaction time and stopping distance, increasing the risk of rear-end collisions
3. Tailgating is only dangerous on highways and is safe on city streets
4. Tailgating helps maintain traffic flow by keeping gaps small between vehicles