An administrator is up grading the back up server from a single tape drive to a SCSI tape library. The library has been unpackaged， mounted， and the library drivers installed.  Which of the following items should the administrator have to connect the device to the backup server？（）

• A、 SCSI cable
• B、 SCSI interface adapter on the tape library
• C、 SCSI termination card on the server
• D、 iSCSI cable