听力原文：W: Is this the 'bookcase you advertised?
M: Yes, it's our regular $14. 95 bookcase on sale today for $9. 90. These are the last two. If you can use them both you can have the pair for $15. 00.
W: That sounds good. I think I'll take both of them.
What is the present price of the bookcase?
A．You can buy two bookcases for $9. 90 each.
B．One bookcase will cost her $9. 90 if she only buys one. If she buys two, they will cost $15. 00.
C．A bookcase costs $15. 00.
D．Bookcases cost $14. 95 for two.