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 is the woman interested in working with Professor Smith

A.She wants to quit her job in the chemistry lab.
B.She wants to get practical experience.
C.She’s interested in becoming a psychology major.
D.She wants to earn extra money.