从所给句里选择适当的句子完成下列对话,其中有两个是多余选项

从所给句里选择适当的句子完成下列对话,其中有两个是多余选项
A.How about this blue one?
B.How much is it?
C.Yes,it is.
D.I'd like a cotton one.
E.Size M.
F.No,it's for my son.
G.Can I help you?
W=Woman,S=Seller
S:Good morning,madam!(1)_________
W:Good morning!I'm looking for a sweater.
S：Is it for you?
W:(2)_______________
S:What size does he wear?
W:(3)______________
S:What color?(4)_______________.
W:It looks nice (5)______________
S:50 yuan.
W:OK,I'll take it