Which statements describes the remote sites in a Cisco Single-Site Secure Network Foundation solution with remote teleworkers？（）

• A、They are separate from the central site and use NAT to route through the Internet to the Central Site
• B、They are part of the VLANs at the Central Site； they are in the same subnets
• C、They use public IP Addresses that are routable through the Internet
• D、They are in separate subnets but are part of the private address space of the network