Which of the following is a benefit of ASM fast disk resync？（）  

• A、 Failed disks are taken offline immediately but are not dropped.
• B、 Disk data is never lost.
• C、 By default， the failed disk is not dropped from the disk group ever， protecting you from loss of that disk.
• D、 The failed disk is automatically reformatted and then resynchronized to speed up the recovery process.
• E、 Hot spare disks are automatically configured and added to the disk group.