To protect the network from external and internal threats， where should Cisco IPS be enabled on an ISR？（）

• A、Globally on the ISR
• B、On the Console and Auxiliary Ports of the ISR
• C、On the untrusted （Outside） interface of the ISR
• D、On the trusted （Inside） interface of the ISR
• E、On the WAN and LAN interfaces of the ISR