You need to configure ISA3 in Seattle to enable communication with the network in New York.What should you do？（）

• A、Open the ports for DNS， HTTP， HTTPS， Kerberos， RADIUS， LDAP， RPC endpoint mapper and client， and Server Message Block （SMB） over IP
• B、Enable the Routing and Remote Access Basic Firewall. Open the ports for DNS， Kerberos， LDAP， Exchange RPCs， RADIUS， L2TP， and Internet Key Exchange （IKE）
• C、Create a PPTP tunnel from ISA3 to the New York network
• D、Create an L2TP/IPSec tunnel from ISA3 to the New York network