单选题

You took the DATA1 tablespace offline at 10：00 A.M. At 12：30 P.M.， a schema of a user is dropped and purged from the Recycle Bin. You noticed this at 2：00 P.M. and decided to perform an incomplete recovery. Which datafiles will you recover？（）

A all the datafiles in the database

B the datafiles associated with the SYSTEM tablespace

C the datafiles associated with the DATA1 tablespace

D all the datafiles in the database except those associated with the DATA1 tablespace

略

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