（单选题）
On Tuesday， a junior DBA dropped an important application user account， whose schema has important tables. You are asked to recover all the objects in the schema. On investigation， you find that the user account was dropped at 11：00 a.m. and Sunday’s backup is the most recent backup.Which flashback feature would you use？（）
A Flashback Drop
B Flashback Table
C Flashback Database
D Flashback Version Query
E Flashback Transaction Query
正确答案
答案解析
略
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