根据汉语提示完成对话。

Mike: What are you going to do 1_____________ (放学后)?

John: I'm going to buy some books. Where is the 2_____________ (书店)?

Mike: It's next to the 3_____________ (邮局).

John: How can I get to the post office?

Mike: You can go by the 4_____________ (1路公共汽车). Get off at the 5_____________ (图书馆).

         Then walk straight for ten minutes. The bookstore is on the right.

John: Thank you.

顾客希望服务中用到的工具如指甲刀、指皮剪等严格消毒是出于服务需求方面的（）心理。

A.求干净

B.求舒适

C.求方便

D.求安全