What do you have to reckon with when children are waiting at traffic lights?

The selected combination is correct because it reflects the behavior of children at traffic lights, which is a critical consideration for drivers.

1. Children may start running when the traffic lights change from green to amber because they do not fully understand the timing or implications of traffic signals.
2. It is also true that children may attempt to cross during a red light, often due to impatience or a lack of awareness about the dangers of waiting.
3. Additionally, children can push each other onto the roadway, which emphasizes the unpredictability of their actions and their potential lack of caution.

According to German traffic regulations, drivers must be especially vigilant when approaching areas where children are present, such as near schools or playgrounds. This is to ensure the safety of all road users, as children's behavior can be spontaneous and not always compliant with traffic signals. Understanding these points helps in fostering a safer driving environment.