【单项选择题】
An administrator performs a full backup every Saturday evening and daily incremental backups the  rest  of  the  week.  The  system  failed  on  Thursday  and  must  be  restored.  <br /> Which  backup  tapes  will  be  required to restore the system to its most recent recoverable state（）<p> An administrator performs a full backup every Saturday evening and daily incremental backups the  rest  of  the  week.  The  system  failed  on  Thursday  and  must  be  restored.  <br /> Which&ens
A、A.Saturday’s full backup tape
B、B.Wednesday’s backup tape
C、C.Saturday’s full backup and Wednesday’s incremental backup tapes
D、D.Saturday’s full backup and Sunday’s through Wednesday’s incremental backup tapes
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