下列物质中，其水解产物为纯净物的是 [ ] A．麦芽糖 B．纤维素 C．蛋白质

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。请将答案填写在第二卷指定的答题区域内。
Mary: Well, Susan, how was your shopping trip with Nancy this afternoon?
Susan: Don’t ask.    小题1:  
Mary: What do you mean? Something went wrong?
Susan: Went wrong?    小题2:   Nancy thought I had said I would meet her at the department store at 2:30 when I really said 2:00. Then she thought we would meet at the main entrance in front when I really said at the east entrance on the Twelfth Street.
Mary:    小题3:  
Susan: Yes!    小题4:  I had given up waiting and went inside the women’s clothing department. So did she. Thus we met finally and it was 3:00 by then.
Mary: Did you get what you wanted?   小题5:  
Susan: A blouse, as a matter of fact. But by that time, all those on sale were gone. So I settled for a skirt.

A. Did you ever find each other? B. But it was magical! C. Actually, I’ve got the list ready. D. I remember you said you wanted to get a sweater. E. Did you get anything? F. It could even be a disaster! G. I don’t want to talk about it anymore.