Detailed Instructions: In this task, you're given four sentences of a story written in natural language. The given story is not complete and your job is to complete the story by selecting one of the sentence choices from (A) and (B), such that the story sounds fully coherent.
Q: Sentence1: Sally was struggling to do well in school. Sentence2: Her parents decided they needed to motivate her. Sentence3: They said if she did well her last semester, she picks the vacation. Sentence4: Sally studied night and day, she wanted to do well. 
 (A) After she finished studying, Sally collected firewood. (B) Sally did well, and her parents agreed to take her to Hawaii.
A:
B