You are designing a strategy to ensure that VPN users are able to access all internal resources. What should you do?（）

• A、Specify a static routing table entry on VPN1 for the Dallas network.
• B、Specify a static routing table entry on VPN1 for the Seattle network.
• C、Implement Internet Authentication Service (IAS) on VPN1.
• D、Define a User Class option for Routing & Remote Access Clients on the DHCP Server.