You are the network administrator for The network consists of a single Active Directory domain named You install Windows Server 2003 on a computer named Testking6. Testking6 is a member of a workgroup. You configure Testking6 as the Web server for TestKing's intranet Web site. TestKing's written security policy states the following requirements: 1. Smart cards are required to log on to all servers. 2. Membership to the Remote Desktop Users group should remain empty. 3. Users should not be able to log on through Terminal Server by using a blank password. 4. Third-party applications should not be installed on network servers. When you attempt to log on to Testking6 by using your smart card, you receive an error message. You verify that your user account is a member of the Domain Admins global group in your domain. You need to be able to log on to Testking6 by using your smart card. What should you do?（）

A. Join Testking6 to the domain.
B. In Computer Management, add your user account to the Administrators local group.
C. Restart Testking6 in safe mode. From a command prompt, run the runas.exe /smartcard command.
D. In the local security policy, assign your user account the Allow log on locally user right.