问题：

[单选]

Your network consists of a single Active Directory site that includes two network segments. Thenetwork segments connect by using a router that is RFC 1542 compliant.
You plan to use Windows Deployment Services （WDS） to deploy Windows Server 2008 R2 servers. All new servers support Pre-Boot Execution Environment （PXE）. 
You need to design a deployment strategy to meet the following requirements：
èSupport Windows Server？2008 R2  
èDeploy the servers by using WDS in both network segments
èMinimize the number of servers used to support WDS
What should you include in your design？（） 

A . Deploy one server. Install WDS and DHCP on the server. Configure the IP Helper tables on therouterbetween the network segments.
B . Deploy two servers. Install WDS and DHCP on both servers. Place one server on each of the network segments. Configure both servers to support DHCP option 60.
C . Deploy two servers. Install WDS and DHCP on both servers. Place one server on each of the network segments. Configure both servers to support DHCP option 252.
D . Deploy two servers. Install WDS and DHCP on one server. Install DHCP on the other server. Place one server on each of the network segments. Configure both servers to support DHCP option60.