Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 (SP2). You have a server named Server1. You try to log on to Server1 and receive the following error message: “Windows cannot connect to the domain, either because the domain controller is down or otherwise unavailable, or because your computer account was not found. Please try again later. If this message continues to appear, contact your system administrator for assistance.” You verify that you can contact a domain controller from Server1. You need to ensure that you can log on to Server1 by using a domain account. What should you do? （）

• A、Reset the Server1 computer account. Restart Server1.
• B、Delete the Server1 computer account. Restart Server1.
• C、Join Server1 to a workgroup and then join Server1 to the domain. Restart Server1.
• D、Delete the Server1 computer account. Create a new computer account named Server1. Restart Server1.