问题：

[单选]

You are the network administrator for Contoso， Ltd. The network consists of a single Active Directory domain named contoso.com. The functional level of the domain is Windows Server 2003. The domain contains Windows Server 2003 computers and Windows XP Professional computers. The domain consists of the containers shown in the exhibit. （Click the Exhibit button.） All production server computer accounts are located in an organizational unit （OU） named Servers. All production client computer accounts are located in an OU named Desktops. There are Group Policy objects （GPOs） linked to thedomain， to the Servers OU， and to the Desktops OU. The company recently added new requirements to its written security policy. Some of the new requirements apply to all of the computers in the domain， some requirements apply to only servers， and some requirements apply to only client computers. You intend to implement the new requirements by making modifications to the existing GPOs. You configure 10 new Windows XP Professional computers and 5 new Windows Server 2003 computers in order to test the deployment of settings that comply with the new security requirements by using GPOs. You use the Group Policy Management Console （GPMC） to duplicate the existing GPOs for use in testing. You need to decide where to place the test computer accounts in the domain. You want to minimize the amount of administrative effort required to conduct the test while minimizing the impact of the test on production computers. You also want to avoid linking GPOs to multiple containers.
 What should you do？（）

A .  Place all test computer accounts in the contoso.com container. 
B .  Place all test computer accounts in the Computers container.
C .  Place the test client computer accounts in the Desktops OU and the test server computer accounts in the Servers OU.
D .  Create a child OU under the Desktops OU for the test client computer accounts. Create a child OU under the Servers OU for the test server computer accounts.
E .  Create a new OU named Test under the contoso.com container. Create a child OU under the Test OU for the test client computer accounts. Create a second child OU under the Test OU for the test server computer accounts.