At a high-speed Virginia stop on a two-lane road, you activate warning devices 100 feet before stopping. What is the problem if the speed limit is 45 mph?

1. Virginia law requires at least 200 feet of warning-device operation when the speed limit is 35 mph or more
2. Warning devices are never used above 35 mph
3. The stop arm must be used without lights at high speed
4. The bus must load students while moving