单项选择题
根据各组对话内容，从下面提供的5个选项中选出能填入空白处的最佳选项。
A:Excuse me. Could you give me a hand
B:()
A:I want to move this desk out of the office.
A．Sure. What is it
B．It’s very nice of you to say so.
C．It’s nothing.
D．Have a nice trip!
E．Certainly, Here you are.