What must a driver do when approaching a school zone with children present?

When approaching a school zone with children present, it is essential for a driver to reduce speed and be prepared to stop. This is crucial for ensuring the safety of children who may unexpectedly enter the roadway, as they can be unpredictable and may not be aware of their surroundings.

School zones are designed to protect these vulnerable pedestrians, and speed limits are often significantly lower in these areas to give drivers more time to react and make safe decisions. Reducing speed allows for better control of the vehicle and increases the likelihood of stopping in time if a child suddenly appears on or near the road.

The other options do not prioritize safety; speeding up can lead to dangerous outcomes, honking the horn does not provide a reliable means of ensuring safety, and ignoring speed limits poses a significant risk, especially if children are present. A cautious approach is always the best practice in school zones.