You are the network administrator for Margies Travel. The network consists of a single Active Directory forest that contains two domains named europe.margiestravel.com and namerica.margiestravel.com. The network contains Windows Server 2003 computers and Windows XP Professional computers. All client computers and 25 servers are dynamically assigned IP addresses by DHCP. All company computers are registered in either the europe.margiestravel.com DNS zone or the namerica.margiestravel.com DNS zone. All DNS servers contain copies of all zones. The written company network management policy states that computers cannot have duplicate host names. Client computers always connect to other computers by specifying only the name of the target computer. A fully qualified domain name （FQDN） is not required.You need to configure the client computers to ensure that all computer names can be resolved by using DNS without the domain name being specified. The configuration of client computers must be automated so that they do not need to be manually reconfigured if an additional domain is added to the forest.  What should you do？（）

• A、Configure the Append these DNS suffixes option in the DNS client configuration of each client computer.
• B、Configure the 015 DNS Domain Name option on all DHCP scopes.
• C、Configure the Default Domain Policy Group Policy object （GPO） in each domain. Enable the DNS Suffix Search List policy setting in the GPO.
• D、Configure the Default Domain Policy Group Policy object （GPO） in each domain. Enable the Primary DNS Suffix policy setting in the GPO.