[单选题]For each question, mark the correct letter(A,B or C).When collecting parcels from this post office, you will need to produce documentation ,which proves your identity.（）
A
You cannot post parcels from here without documentation.
B
You should collect post and documents at the same time.
C
You must bring something showing who you are.
正确答案：C
题目解析
题目翻译：当你从邮局领取包裹时，你需要出示文件，证明你的身份。
题目重点是后半句，need to produce documentation ,which proves your identity，需要的是能够证明身份的文件，在三个选项中写出“证明身份”的是C，所以选C。
