An engineer must configure a Cisco ISR 4000 as an MGCP gateway to download its MGCP-specific configuration from Cisco UCM. Which Cisco IOS configuration snippet accomplishes this task?

A. ISR4K(config)# ip tftp source-interface GigabitEthernet 0/0/1 ISR4K(config)# mgcp call-agent 10.1.2.3 2428 service-type mgcp version 0.1 ISR4K(config)# ccm-manager config server 10.1.2.3 ISR4K(config)# ccm-manager config ISR4K(config)# ccm-manager mgcp ISR4K(config)# mgcp B. ISR4K(config)# ip tftp source-interface GigabitEthernet 0/0/1 ISR4K(config)# mgcp call-agent 10.1.2.3 2427 service-type mgcp version 0.1 ISR4K(config)# ccm-manager config server 10.1.2.3 ISR4K(config)# ccm-manager config download ISR4K(config)# ccm-manager mgcp ISR4K(config)# mgcp C. ISR4K(config)# ip tftp source-interface GigabitEthernet 0/0/1 ISR4K(config)# mgcp call-agent 10.1.2.3 2427 service-type mgcp version 11.5.1 ISR4K(config)# ccm-manager config server 10.1.2.3 ISR4K(config)# ccm-manager config ISR4K(config)# ccm-manager mgcp ISR4K(config)# mgcp D. ISR4K(config)# ip tftp source-interface GigabitEthernet 0/0/1 ISR4K(config)# mgcp call-agent 10.1.2.3 2427 service-type mgcp version 0.1 ISR4K(config)# ccm-manager config server 10.1.2.3 ISR4K(config)# ccm-manager config ISR4K(config)# ccm-manager mgcp ISR4K(config)# mgcp Most Voted