A)She's going away for a while.
B)She did well on the test.
C)She worked hard and earned a lot of money.
D)She's didn't have to work hard for the exam.
原文：
M: Congratulations. You certainly did quite well and I must say you deserve that grade.
W: Well I really studied hard for that exam Ive been preparing for it for more than a month. Now I can relax for a while.
Q: Why is the woman so happy