[听力原文]
W: Have you bought your books yet
M: I got my chemistry book, but the history and biology books were sold out.

Which books has the man bought（）

A．depriving of
B．depriving
C．deprived of
D．deprived

A．the charge is the same for two people in the room as it is for one person
B．the per-person charge is based on two people in a room, so the price is twice the quoted rate
C．the charge is the same for one person in the room as it is for two people
D．the room rate changes with each additional person in the room