In Huawei Oceanstor V3 storage system, Which description about file-level HyperSnap characteristic data recovery are correct? (Multiple choice)

In Huawei Oceanstor V3 storage system, Which description about file-level HyperSnap characteristic data recovery are correct? (Multiple choice)
A . You can restore a single file
B . You can restore the original file with logical error
C . can recover the original file deleted by mistake
D . You can restore files on the file system with physically failure

Answer: BC