问题：
[单选题]Certkiller.COM运行Windows Server 2008 Active Directory域。财务OU（组织单元）包含一个计算机的OU，OU和团体，为用户的OU。至于每家公司的政策，执行每日备份。另一位管理员错误地删除组OU。你必须恢复组，在不影响用户和财务OU中的计算机的OU。来实现这个任务，你应该怎么做呢（）
A、组OU执行权威性还原
B、执行一个完整的恢复财务OU
C、财务OU执行非权威性还原
D、执行非权威性还原组OU
参考答案：
A
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