Your database operates in ARCHIVELOG mode. User­managed 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： 
ORA­00942： 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？（）