Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview. According to the interview, Sara’s grades have fallen probably because ______.
A.She was tired of the study at school. B.She didn’t get enough to eat. C.She helped too much with the chores. D.She always slept in the class.