You have a VPN server that runs Windows Server 2003 Service Pack 2 （SP2）. The VPN server is configured to have a static IP address pool. The IP address range is 10.10.10.1 to 10.10.10.200. All clients connect to the server by using PPTP.You discover that the VPN server supports only five concurrent VPN connections. You need to ensure that the VPN server supports 100 concurrent VPN connections. What should you do？（）

A. From Network Interfaces，create a new demand-dial interface.
B. From the properties of the server，disable multilink connections.
C. From the port properties，configure the WAN Miniport（PPTP）device.
D. From the properties of the server，configure the IP address assignment settings.