Final answer:
A driver should always be prepared to stop for a school bus to ensure safety. While buses are more commonly on the road during school hours and weekdays, they can also run at any time including weekends and summer.
Step-by-step explanation:
A driver should be prepared to stop for a school bus at any time (option c). While school buses are more commonly encountered during weekdays and school hours, they may also operate during weekends, early mornings, late evenings, and even during summer for various reasons such as school field trips, activities, and sports events. Therefore, it's crucial for drivers to remain vigilant and be prepared to stop when they see a school bus to ensure the safety of all.
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