单项选择题

A. Configure Routing Information Protocol (RIP), and then activate authentication on the RIP interface.
B. Configure Routing Information Protocol (RIP), and then configure the incoming packet protocol settings on the RIP interface.
C. Configure Network Address Translation (NAT), and then add a new service to the NAT interface.
D. Configure Network Address Translation (NAT), and then enable the Secure Web Server (HTTPS) service on the NAT interface.