You are the network administrator for TestKing. The network contains a Windows Server 2003 computer named testking1, which hosts a critical business application named Salesapp. Testking1 has one disk that contains a single NTFS volume. Five days ago, the System State of testking1 was backed up, and an Automated System Recovery (ASR) backup was created. No additional backups were performed. Subsequently, many changes were made to the Salesapp data files. You apply an update to the application, which requires you to restart testking1. Windows startup terminates with a Stop error. You restart the computer and boot to a floppy disk. A utility on this disk gives you read-only access to the NTFS file system. You discover that one of the .dll files for the Salesapp application is corrupted. The corrupted file is stored in the C.\Windows\System32 folder. You need to restore the corrupted file. You need to avoid losing any changes made to the data files on testking1. What should you do onTestKing1?（）

A. Perform the ASR restore procedure.
B. Restart Windows by using the Last Known Good configuration option.
C. Start the Recovery Console and replace the corrupted .dll file with a copy from the Salesapp CD-RO
D. Reinstall Windows Server 2003. Do not format any volumes.