正解:C
Control plane policing (CoPP) is a feature that allows you to manage the traffic that is destined to the control plane of a network device. In the context of Cisco Service Provider network core technologies, implementing CoPP for SSH and Telnet involves creating a policy map that specifies the allowed rate of traffic and the actions to take when traffic exceeds this rate. Option C correctly implements CoPP by specifying class maps for SSH and Telnet, setting the police rate, and applying the policy map to the control plane.