单选题 When a customer finds that what he or she bought has a fault in it, the first thing he or she should do is to ______.

A、 complain personally to the manager
B、 threaten to make the mater to court
C、 write a firm letter of complaint to the store
D、 offer some written proof of what he or she bought to the store

【正确答案】 D

【答案解析】细节题。文章第一段第一句话“…the first step is to give the warranty，or any other records which might help，to the store where he or she bought the thing.”首先是要向商店提供保单、记录等证明，所以 [D]正确。