23. Man: Turn off the computer when you leave the office.
Woman: I always do. Why do you need to remind me?
Man: _______________
Woman: Don't worry. Saving energy is a habit of mine!
(A) Just in case you forget. No offense.
(B) You need to purchase a new computer.
(C) People are afraid of leaving the office.
(D) You need to save your files before switching off the computer.