Which of the commands illustrated below will allow an incoming call from a PRI line with called number 408555111 to ring an IP phone with extension number 5111?

Which of the commands illustrated below will allow an incoming call from a PRI line with called number 408555111 to ring an IP phone with extension number 5111?

A.
Dialplan-pattern 1408555……… extension 51….

B.
Dialplan-pattern 1408555……… extension 5….

C.
Dialplan-pattern 1408555……… extension length 4.

D.
Dialplan-pattern 1408555……… extension length 5.

E.
None of the above.