When following two school buses, you should maintain at least the distance of which of the following?

Maintaining at least the distance of one city block when following two school buses is important for several reasons. School buses often make frequent stops to pick up and drop off children, and keeping a safe distance allows for adequate reaction time in case of sudden stops or emergencies. This distance also ensures that children boarding or exiting the bus have enough space and time to do so safely, without the risk of being in the path of a moving vehicle.

Additionally, this distance helps reduce the chances of rear-end collisions, particularly since drivers behind school buses may become distracted or underestimate their stopping distance. The requirement to maintain a distance of one city block aligns with safe driving practices around school zones and reinforces the emphasis on child safety during school hours.

Other options, such as maintaining two city blocks or one mile, might be unnecessarily excessive for practical driving situations. Similarly, maintaining only half a city block does not provide sufficient distance for safe stops or emergencies, especially in bustling areas where children are present. Therefore, the recommendation of one city block strikes a balance between safety and practicality.