which of the following?

The pwconv command does which of the following?

A.
It creates the /etc/shadow file, moves the encrypted passwords into it, and places an x in the password field of the /etc/passwd file.

B.
It creates the /usr/lib/shadow file, moves the encrypted passwords into it and places an x in the password field of the /etc/passwd file.

C.
It removes the /etc/shadow file and places the encrypted passwords in the second field of the /etc/passwd file.

D.
It removes the /usr/lib/shadow file and places the encrypted passwords in the second field of the /etc/passwd file.