Why should a driver scan the danger zone continuously while students are boarding or exiting, rather than checking just once?

Pick an answer

1. A single check at the start of loading is enough for the whole process, since students stay where they are once the door has opened
2. The danger zone becomes irrelevant once the bus doors are open
3. A child's position can change quickly, and continuous scanning helps catch a child who moves into a risky spot
4. Continuous scanning is required only when more than twenty students are boarding

Correct!

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