You work as an IT engineer in an international company which is named WINTEL. You are in charge of the network of the company. You install Windows Small Business Server (SBS) 2008 on a server which is named server1 in the network. There’s a user who is named John. He uses a laptop named ClientJon which the Windows Vista Home Premium Edition is installed. This morning, you receive an e-mail from John. In the e-mail, he tells you that when he uses ClientJ at the office, he is unable to access network resources. He desires his ClientJ to be joined to the domain successfully. He asks you to solve this problem for him. So what actions should you perform?

A.
In order to solve this problem for him, Windows Vista Service Pack 1 should be installed on ClientJ.

B.
In order to solve this problem for him, the Windows Anytime Upgrade feature should be used on ClientJ.

C.
IIn Active Directory Users and Computers, ClientJ’s computer account should be added to the Computers folder

D.
In order to solve this problem for him, John’s user account should be added to the local Administrators group.