Your company has an Active Directory domain. A user attempts to log on to the domain from
a client computer and receives the following message: “This user account has expired. Ask
your administrator to reactivate the account.”

You need to ensure that the user is able to log on to the domain.
What should you do?

A.
Modify the properties of the user account to set the account to never expire.

B.
Modify the properties of the user account to extend the Logon Hours setting.

C.
Modify the default domain policy to decrease the account lockout duration.

D.
Modify the properties of the user account to set the password to never expire.

Explanation:

Further information:
http://technet.microsoft.com/en-us/library/dd145547.aspx
User Properties – Account Tab
Account expires
Sets the account expiration policy for this user. You can select between the following
options:

Use Never to specify that the selected account will never expire. This option is the default for
new users.
Select End of and then select a date if you want to have the user’s account expire on a
specified date.