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What speed limit should you adhere to when passing a school bus?

  1. 20 mph

  2. 25 mph

  3. 30 mph

  4. 45 mph

The correct answer is: 25 mph

When passing a school bus, it is important to follow the posted speed limit, which is typically lower than the regular speed limit for that road. This is to ensure the safety of children who may be getting on or off the bus. Option A, 20 mph, may seem like a safe speed, but it may be too slow for the flow of traffic and can potentially cause accidents. Option C, 30 mph, may also be too fast and can put children at risk. Option D, 45 mph, is definitely too fast and would pose a great danger to children. Therefore, the best option is B, 25 mph, as it strikes a balance between safety and maintaining a reasonable speed for traffic.