Refer to the exhibit. 
Is this configuration correct and is the T1 operational? If not, what is the cause?
A.
Yes, the configuration is correct and it is operational.
B.
No, the configuration is incorrect and the T1 is not operational because MGCP is not the proper
service statement.
C.
No, the configuration is incorrect and the T1 is not operational because, the isdn switch-type is
incorrect.
D.
No, the configuration is incorrect and the T1 is not operational because the isdn-bind-13 ccmmanager command is missing from the serial0/0/0:23 interface.
E.
No, the configuration is incorrect and the T1 is not operational because the no ip address
command is applied to the serial0/0/0:23 interface.
Explanation:
To bind Layer 3 of the ISDN PRI interface of the Media Gateway Control Protocol
(MGCP) voice gateway to the Cisco CallManager for PRI Q.931 signaling backhaul support, use
the isdn bind-l3 ccm-manager command in interface configuration mode
Link:
http://www.cisco.com/en/US/docs/ios/12_3t/voice/command/reference/vrht_i2_ps5207_TSD_Prod
ucts_Command_Reference_Chapter.html#wp1094910