Your network consists of a single Active Directory domain and two network segments named Subnet1 and Subnet2.You deploy a server named Server1 that runs Routing and Remote Access. Server1 is configured as a router between the two network segments.You deploy a DHCP server on Subnet1. You configure a DHCP scope for each network segment.Client computers that run Windows XP Professional Service Pack 3 (SP3) are deployed on both network segments and are configured to receive IP configurations dynamically.You discover that all client computers on Subnet2 have Automatic Private IP Addressing (APIPA) addresses.You need to ensure that all client computers on Subnet2 receive their IP configurations from the DHCP server.  What should you do in Routing and Remote Access?（）

• A、Disable IP Routing. 
• B、Create a static route. 
• C、Enable demand-dial routing. 
• D、Enable a DHCP Relay Agent.