TOEFL Listening: TPO-TOEFL听力TPO - NKV7981DQ4A4EU8ZR$

Why will the professor probably not grade the film review the student has submitted? A. She realizes that the film she assigned was too difficult for the student to review. B. She thinks that she may not have explained the assignment very well. C. The student did not follow the professor's guidelines for choosing a film. D. The review the student submitted was only a first draft.