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.