Why should a driver check mirrors carefully for any vehicle that fails to stop for the bus's warning signals before opening the door to load or unload students?

Pick an answer

1. This check is necessary only on multi-lane roads, never on two-lane roads
2. Every vehicle always stops for a school bus's warning signals, so a mirror check before opening the door adds nothing
3. Mirror checks for approaching traffic are unnecessary once the stop arm is extended
4. A vehicle that illegally passes the stopped bus could strike a student crossing near the front or side

Correct!

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