客户申请办理激活证书业务，需向注册行提供（）等资料。

A.《激活申请书》

B.法定代表人有效身份证件的原件及复印件

C.管理员或操作员有效身份证件原件及复印件

D.经办人有效身份证件的原件及复印件

We were ____ giving up ____ they came to help us out. [ ]

A. at the point of; when

B. on the point of; when

C. on the point of; while

D. about to; when