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: Sara had never been good at math. On the day of the final, she was worried. She felt sure she would fail. But she did the best she could. She was happy to find out she had passed.
 selected sentence: But she did the best she could.

Sara has a test >Causes/Enables> Sara does the best she can