单项选择题

A.EXPIREDB.AVAILABLEC.UNAVAILABLED.ACCESSIBLEIfyouCROSS……

If you CROSSCHECK the backup piece that was previously marked as EXPIRED but is now available， what would the status of this backup piece be in the RMAN repository？（）

A.EXPIRED
B.AVAILABLE
C.UNAVAILABLE
D.ACCESSIBLE

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