Your company has implemented a policy that states that accounts
should become unavailable if they have not been used in 21 days. How is account inactivity calculated in Solaris if no naming service is used?

A.
an entry in the /var/adm/lastlog file

B.
the last user entry in the /var/adm/wtmpx file

C.
the password timestamp in the /etc/shadow file

D.
the number of days since the user’s last password change