单项选择题

A.until SCNB.until timeC.until cancelD.using backup con……

The database is being restored from a closed backup. The data files， control files， password file， and parameter file are available， but the online redo logs are not. Because the online redo logs are not available， you must simulate recovery and alter the database open with the reset logs option so the online redo logs are created while the database opens. Which type of recover is used in this situation？（）

A.until SCN
B.until time
C.until cancel
D.using backup control file

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