单选题 Woman: I can't believe Karen is late for such an important occasion as a job interview. I reminded her time and again yesterday.
Man: You should have known her better by now. Everything you tell her goes in one ear and out the other.
Question: What does the man imply?

• A. Karen is very forgetful.
• B. He knows Karen better now.
• C. Karen is sure to pass the interview.
• D. The woman should have reminded Karen earlier.