A technical consultant needs to deploy a Microsoft Windows 2003 server image from a single x336 to five new x336 servers using Remote Deployment Manager （RDM）.  After installing and configuring RDM and loading the installation image， the consultant wants to deploy the first server.  After the new x336 is booted， it is unable to connect to the RDM server.  Which of the following is the most likely cause of the problem？（）

• A、The new server is not PXE-enabled.
• B、The RDM agent is not configured on the RDM server.
• C、The IBM Director agent is not installed on the new server.
• D、A DHCP server is not installed or configured the network.