单项选择题

Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now listen to the conversation. Why did the woman get a student credit

A.Because she wants to follow the other students.
B.Because she wants to be independent.
C.Because she wants to buy things that she can’t pay by cash.
D.Because she wants to show that she has grown up.