You need to configure ISA3 in Seattle to enable communication with the network in New York.What should you do？（）
- AOpen the ports for DNS， HTTP， HTTPS， Kerberos， RADIUS， LDAP， RPC endpoint mapper and client， and Server Message Block （SMB） over IP
- BEnable the Routing and Remote Access Basic Firewall. Open the ports for DNS， Kerberos， LDAP， Exchange RPCs， RADIUS， L2TP， and Internet Key Exchange （IKE）
- CCreate a PPTP tunnel from ISA3 to the New York network
- DCreate an L2TP/IPSec tunnel from ISA3 to the New York network