Which configuration output indicates a properly configured T1 digital voice interface?

A.	controller T1 0/0/0 framing esf linecode b8zs pri-group timeslots 1-24 !
B.	isdn switch-type primary-ni ! controller T1 0/0/0 framing esf linecode b8zs !
C.	isdn switch-type primary-ni ! controller T1 0/0/0 framing esf linecode b8zs pri-group timeslots 1-24 isdn switch-type primary-ni !
D.	isdn switch-type primary-ni ! controller T1 0/0/0 framing esf linecode b8zs ! dial-peer voice 1 pots destination-pattern 54.... direction-inward.dial port 0/0/0:23