What did the girl hold back from doing with her bike?

The choice indicating that the girl held back from riding her bike without lights is the most appropriate answer because it highlights the importance of safety when cycling. Riding a bike without proper lighting, especially in low visibility conditions, can significantly increase the risk of accidents. The implication is that she is aware of the need for safety precautions, which demonstrates responsibility.

In contrast, the other options may describe actions that involve considerations of timing, weather, or security but do not focus directly on immediate safety measures relevant to cycling at night or in dark conditions. Therefore, the emphasis on lights reinforces the idea that she is prioritizing her safety and following best practices for riding her bike.