Definition: In this task, you will be given a short story. One sentence from the story is chosen. Consider the events that happen before that sentence, or are likely to have happened before it. Does any of them directly cause it, or simply make it possible? You should write your answer in the form " A >causes/enables> B". Try to use phrases and sentences from the story to compose your answer when possible.
Input: story: Elena arrived to school. He took her books out of the back seat. While she wasn't looking a car knocked out her left tail light. Before Elena had the chance to see who did it, the car drove off. The police wasn't able to help since the driver fled.
 selected sentence: The police wasn't able to help since the driver fled.

The driver decides to flee >Causes/Enables> The driver flees