Which three statements are true about the mount command?

A.
Only root can mount filesystems that are not listed in listed in /etc/fstab.

B.
It lists only the filesystems listed in /etc/fstab if executed without any arguments.

C.
It supports labels.

D.
It lists all the currently mounted filesystems, if executed without any arguments

E.
By default, it can be used by an ordinary user to mount a local file system.

Explanation: