—Whynotgoandhavedinnerinarestaurant?—_________.It'stooexpensive.AWhynotBIagreeCI'mafraidnotDI'msure

　　— Whynotgoandhavedinnerinarestaurant? 

　　—_________.It'stooexpensive.

　　A

　　Whynot

　　B

　　Iagree

　　C

　　I'mafraidnot

　　D

　　I'msure