Don't respond any e-mails ( ) personal information,no matter how official they look.

问题描述:

Don't respond any e-mails ( ) personal information,no matter how official they look.
A searching;B asking; C requesting;D questioning说明理由谢谢

C.这是固定用法,asking(B)在这里一定要用‘asking for’,不可以光‘asking’所以排除.D是怀疑/审问,A是寻找,所以都排除.