Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in /etc/shadow?

The `*` character usually indicates a locked or disabled account, or a password that cannot be used for login.

The `-` character is not a standard indicator for shadowed passwords in `/etc/passwd`.

The `s` character is not used to indicate a shadowed password in `/etc/passwd`.

The `x` character in the second field (password field) of a user's entry in `/etc/passwd` is a standard indicator that the user's encrypted password is stored separately in the `/etc/shadow` file, enhancing system security by restricting access to password hashes.