根据各组对话内容，从下面方框中提供的5个选项中选出能填入空白处的最佳选项。
A. It was great. B. What"s the matter C. How about the green one
D. Are you free tomorrow E. Thanks, but I am full. A: So many nice coats! I can"t decide which one to buy.
B: ______
【参考答案】
C[解析] 顾客A说“这么多漂亮的外套，我都不知道买哪一件了”，这时B提供了建议“How about the green......