Which statement about FileVault 2 is TRUE?

A.
Once a user enables FileVault 2, it cannot be disabled.

B.
FileVault 2 can only be enabled on non-administrator user accounts.

C.
There is no way to recover data from a FileVault 2 protected volume if a login password is lost.

D.
When a user enables FileVault 2, the startup volume is encrypted and access to the volume is password protected.