阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
Twenty-year-old Alison works as a gas station assistant. She is a single mother looking after her son and is finding it a 36 to support herself and her child on her 37 salary.
When she found a lottery(彩票) card that has three 38 $ 75,000 square exposed, she could have demanded the prize money.
The thought did 39 in her mind for a moment, like many temptations(诱惑) that come in and out of our minds. But Alison 40 by some principles, one of them being “honesty is the best policy.”
