TOEFL Listening: ETS-TOEFL听力机经 - 9D3G4X3DBQF47STQP$

Why does the woman mention a test that she has to take? A. To explain why she is unable to attend a training session B. To let the man know that she will be late for the tour on Monday C. To list one requirement she must fulfill to receive extra credit D. To show that she is aware of what she must do to become a tour guide