单项选择题

A.Configure all client computers to point to a VPN server in Amsterdam.  
B.Configure all client computers to use Multilink Bandwidth Allocation Protocol (BAP).
C.Create a network Load Balancing cluster of VPN servers.  
D.Create a shutdown script for the VPN servers to delete the host(A) resource record of the VPN sever from the DNS database when the VPN server are shutdown.