单项选择题
W：Can I help you？
M：I want to buy a house.
W：What kind of house do you want？
M：Well，I have got a big family，my parents，my wife，two sons，one girl and me，so I’d iike to have a large house.
W：OK，I see.We have some large houses.You can choose the one you like.
M：Good!I want to have a house with 4bedrooms，a kitchen，a toilet and a big meeting room.
W：Well，I suggest you buy Room 315.It is big enough for your family.
M：Thank you for your suggestion，I want to go there and have a look at it.
W：OK!This way，please.
A．Three.
B．Five.
C．Seven.
D．Eight.