In which situations will the ASM metadata backup help you recover the ASM disk in a disk group？（）

• A、 when one or more file directory paths are accidentally deleted from an ASM disk group
• B、 when one of the disks in a disk group is accidentaly unplugged
• C、 when the data file on an ASM disk group gets corrupted
• D、 when one or more disks in an ASM disk group are lost