A driver misses a stop on a narrow road with students nearby. Which backing decision is safest?

1. ABS guarantees the shortest stop on every surface
2. Avoid backing if possible; if unavoidable, secure students, use a reliable adult lookout when available, check mirrors, sound the horn, and back slowly
3. Use a student as the lookout behind a backing bus
4. A strobe light replaces red loading lights and the stop arm