【单选题】

Man: I'm exhausted. I stayed up the whole night studying for my midterm math exam.Woman: But why do you always wait until the last minuteQuestion: What does the woman imply
A．The man is usually the last to hand in his test paper.

B．The man has made a mess of his midterm exam.
C．The man has bad study habits.
D．The man is a diligent student.