Refer to the exhibit. Why does a call placed from phone number 4015551001 to 4025552001 fail?

A.
Port 0/1/1 is out of service.

B.
Port 0/1/1 is busy

C.
402-555-2001 is busy

D.
User at 401-555-1001misdialed the call.

E.
402-555-2001 is out of service.