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單項選擇題

Your database operates in ARCHIVELOG mode. User-managed consistent backups are performed every 
Sunday night. On Tuesday， client A drops a table at 8：00 a.m. as follows： 
SQL> DROP TABLE cust_ord PURGE； 
Table dropped. 
Client B executes a query at 9：00 a.m. on the same table as follows： 
SQL> SELECT * FROM cust_ord； 
SELECT * FROM cust_ord 
*ERROR at line 1：ORA-00942： table or view does not exist 
Client B needs the dropped table and reports the problem to you.With reference to this scenario， which action should you take？（）

A. retrieve the table by using the flashback feature
B. restore all the data files from last Sunday’s backup and then perform a time-based recovery
C. restore all the data files from last Sunday’s backup and then perform a log sequence recovery
D. restore all the data files from last Sunday’s backup and then perform a cancel-based recovery
E. restore from last Sunday’s backup only data files that belong to the tablespace in which the table was stored and then perform a complete recovery

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