You are exporting a file system from a VNX Unified system at the subdirectory level. What is a key consideration?

A.
It is a best practice to configure group and user permissions for the subdirectory.

B.
The file system must be exported again if the user and group permissions are modified.

C.
When an export is deleted, subdirectories are automatically destroyed.

D.
The lost+found and etc directories become visible to the client.