（单选题）
A media failure has occurred. This has resulted in all the members of the next hop log group being rendered inaccessible to the log writer process （LGWR） at a log switch. How does this failure affect the operational database？（）
A The database re-created the missing redo log files automatically.
B The database continues to function normally with the existing files.
C The database allows only queries， no other statements are allowed.
D The database returns and error and the database instance shuts down.
E The user sessions that generate redo logs are terminated automatically.
正确答案
答案解析
略
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